25375613808 has 20 divisors (see below), whose sum is σ = 65553669128. Its totient is φ = 8458537920.

The previous prime is 25375613773. The next prime is 25375613863. The reversal of 25375613808 is 80831657352.

It is a super-2 number, since 2×25375613808² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 528658621 = 25375613808 / (2 + 5 + 3 + 7 + 5 + 6 + 1 + 3 + 8 + 0 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264329263 + ... + 264329358.

Almost surely, 2^25375613808 is an apocalyptic number.

It is an amenable number.

25375613808 is an abundant number, since it is smaller than the sum of its proper divisors (40178055320).

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

25375613808 is a wasteful number, since it uses less digits than its factorization.

25375613808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528658632 (or 528658626 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 25375613808 in words is "twenty-five billion, three hundred seventy-five million, six hundred thirteen thousand, eight hundred eight".