25005049656 has 32 divisors (see below), whose sum is σ = 65230565760. Its totient is φ = 7972624352.

The previous prime is 25005049631. The next prime is 25005049681. The reversal of 25005049656 is 65694050052.

It is an interprime number because it is at equal distance from previous prime (25005049631) and next prime (25005049681).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22648950 + ... + 22650053.

It is an arithmetic number, because the mean of its divisors is an integer number (2038455180).

Almost surely, 2^25005049656 is an apocalyptic number.

It is an amenable number.

25005049656 is an abundant number, since it is smaller than the sum of its proper divisors (40225516104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25005049656 is a wasteful number, since it uses less digits than its factorization.

25005049656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45299035 (or 45299031 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 25005049656 in words is "twenty-five billion, five million, forty-nine thousand, six hundred fifty-six".