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25316025 = 352748221
BaseRepresentation
bin110000010010…
…0101010111001
31202122012001120
41200210222321
522440103100
62302335453
7425116440
oct140445271
952565046
1025316025
1113321339
12858a589
135324cc7
14350dd57
1523510a0
hex1824ab9

25316025 has 24 divisors (see below), whose sum is σ = 47836224. Its totient is φ = 11572800.

The previous prime is 25316023. The next prime is 25316041. The reversal of 25316025 is 52061352.

It is not a de Polignac number, because 25316025 - 21 = 25316023 is a prime.

It is a super-2 number, since 2×253160252 = 1281802243601250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25315986 and 25316004.

It is not an unprimeable number, because it can be changed into a prime (25316021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23586 + ... + 24635.

It is an arithmetic number, because the mean of its divisors is an integer number (1993176).

Almost surely, 225316025 is an apocalyptic number.

25316025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25316025 is a deficient number, since it is larger than the sum of its proper divisors (22520199).

25316025 is a wasteful number, since it uses less digits than its factorization.

25316025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48241 (or 48236 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 25316025 is about 5031.5032544956. The cubic root of 25316025 is about 293.6287019942.

Adding to 25316025 its reverse (52061352), we get a palindrome (77377377).

The spelling of 25316025 in words is "twenty-five million, three hundred sixteen thousand, twenty-five".

Divisors: 1 3 5 7 15 21 25 35 75 105 175 525 48221 144663 241105 337547 723315 1012641 1205525 1687735 3616575 5063205 8438675 25316025