25457603880 has 32 divisors (see below), whose sum is σ = 76372812000. Its totient is φ = 6788694336.

The previous prime is 25457603867. The next prime is 25457603881. The reversal of 25457603880 is 8830675452.

It is not an unprimeable number, because it can be changed into a prime (25457603881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106073230 + ... + 106073469.

It is an arithmetic number, because the mean of its divisors is an integer number (2386650375).

Almost surely, 2^25457603880 is an apocalyptic number.

25457603880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25457603880 is an abundant number, since it is smaller than the sum of its proper divisors (50915208120).

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

25457603880 is a wasteful number, since it uses less digits than its factorization.

25457603880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212146713 (or 212146709 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 25457603880 in words is "twenty-five billion, four hundred fifty-seven million, six hundred three thousand, eight hundred eighty".