25023897100 has 72 divisors (see below), whose sum is σ = 54656220528. Its totient is φ = 9944448000.

The previous prime is 25023897077. The next prime is 25023897109. The reversal of 25023897100 is 179832052.

It is a self number, because there is not a number n which added to its sum of digits gives 25023897100.

It is not an unprimeable number, because it can be changed into a prime (25023897109) 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 23 ways as a sum of consecutive naturals, for example, 14002407 + ... + 14004193.

It is an arithmetic number, because the mean of its divisors is an integer number (759114174).

Almost surely, 2^25023897100 is an apocalyptic number.

25023897100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25023897100 is an abundant number, since it is smaller than the sum of its proper divisors (29632323428).

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

25023897100 is a wasteful number, since it uses less digits than its factorization.

25023897100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2635 (or 2628 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 25023897100 in words is "twenty-five billion, twenty-three million, eight hundred ninety-seven thousand, one hundred".