25607961 has 8 divisors (see below), whose sum is σ = 37937760. Its totient is φ = 17071956.

The previous prime is 25607951. The next prime is 25607969. The reversal of 25607961 is 16970652.

25607961 is a `hidden beast` number, since 2 + 560 + 7 + 96 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-25607961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25607969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474195 + ... + 474248.

It is an arithmetic number, because the mean of its divisors is an integer number (4742220).

Almost surely, 2^25607961 is an apocalyptic number.

It is an amenable number.

25607961 is a deficient number, since it is larger than the sum of its proper divisors (12329799).

25607961 is an equidigital number, since it uses as much as digits as its factorization.

25607961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948452 (or 948446 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 25607961 is about 5060.4309105055. The cubic root of 25607961 is about 294.7530673236.

The spelling of 25607961 in words is "twenty-five million, six hundred seven thousand, nine hundred sixty-one".