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25026625 = 531315401
BaseRepresentation
bin101111101111…
…0000001000001
31202002111002001
41133132001001
522401323000
62252224001
7422502631
oct137360101
952074061
1025026625
1113143968
12846b001
135253370
1434766c1
1522e546a
hex17de041

25026625 has 16 divisors (see below), whose sum is σ = 33637968. Its totient is φ = 18480000.

The previous prime is 25026613. The next prime is 25026637. The reversal of 25026625 is 52662052.

It is an interprime number because it is at equal distance from previous prime (25026613) and next prime (25026637).

It can be written as a sum of positive squares in 8 ways, for example, as 4704561 + 20322064 = 2169^2 + 4508^2 .

It is not a de Polignac number, because 25026625 - 25 = 25026593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25026593 and 25026602.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6076 + ... + 9325.

It is an arithmetic number, because the mean of its divisors is an integer number (2102373).

Almost surely, 225026625 is an apocalyptic number.

25026625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25026625 is a deficient number, since it is larger than the sum of its proper divisors (8611343).

25026625 is a wasteful number, since it uses less digits than its factorization.

25026625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15429 (or 15419 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 25026625 is about 5002.6617914866. The cubic root of 25026625 is about 292.5055396228.

Adding to 25026625 its reverse (52662052), we get a palindrome (77688677).

It can be divided in two parts, 25026 and 625, that added together give a triangular number (25651 = T226).

The spelling of 25026625 in words is "twenty-five million, twenty-six thousand, six hundred twenty-five".

Divisors: 1 5 13 25 65 125 325 1625 15401 77005 200213 385025 1001065 1925125 5005325 25026625