25612925 has 12 divisors (see below), whose sum is σ = 34203540. Its totient is φ = 18913920.

The previous prime is 25612901. The next prime is 25612933. The reversal of 25612925 is 52921652.

25612925 = 980² + 981² + ... + 1005².

It can be written as a sum of positive squares in 6 ways, for example, as 11195716 + 14417209 = 3346^2 + 3797^2 .

It is not a de Polignac number, because 25612925 - 2¹⁴ = 25596541 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 25612891 and 25612900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39080 + ... + 39729.

It is an arithmetic number, because the mean of its divisors is an integer number (2850295).

Almost surely, 2^25612925 is an apocalyptic number.

25612925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25612925 is a deficient number, since it is larger than the sum of its proper divisors (8590615).

25612925 is a wasteful number, since it uses less digits than its factorization.

25612925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78832 (or 78827 counting only the distinct ones).

The product of its digits is 10800, while the sum is 32.

The square root of 25612925 is about 5060.9213588041. The cubic root of 25612925 is about 294.7721116577.

The spelling of 25612925 in words is "twenty-five million, six hundred twelve thousand, nine hundred twenty-five".