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425025 = 32521889
BaseRepresentation
bin1100111110001000001
3210121000200
41213301001
5102100100
613035413
73420066
oct1476101
9717020
10425025
11270367
12185b69
1311b5c3
14b0c6d
1585e00
hex67c41

425025 has 18 divisors (see below), whose sum is σ = 761670. Its totient is φ = 226560.

The previous prime is 425003. The next prime is 425027. The reversal of 425025 is 520524.

It can be written as a sum of positive squares in 3 ways, for example, as 24336 + 400689 = 156^2 + 633^2 .

It is not a de Polignac number, because 425025 - 26 = 424961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 424989 and 425007.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 425025.

It is not an unprimeable number, because it can be changed into a prime (425027) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 720 + ... + 1169.

It is an arithmetic number, because the mean of its divisors is an integer number (42315).

2425025 is an apocalyptic number.

425025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

425025 is a deficient number, since it is larger than the sum of its proper divisors (336645).

425025 is a wasteful number, since it uses less digits than its factorization.

425025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905 (or 1897 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 425025 is about 651.9394143630. The cubic root of 425025 is about 75.1862039917.

Adding to 425025 its reverse (520524), we get a palindrome (945549).

The spelling of 425025 in words is "four hundred twenty-five thousand, twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 1889 5667 9445 17001 28335 47225 85005 141675 425025