25555024940 has 24 divisors (see below), whose sum is σ = 53707434480. Its totient is φ = 10214032448.

The previous prime is 25555024939. The next prime is 25555024951. The reversal of 25555024940 is 4942055552.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 472295 + ... + 523614.

It is an arithmetic number, because the mean of its divisors is an integer number (2237809770).

Almost surely, 2^25555024940 is an apocalyptic number.

25555024940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25555024940 is an abundant number, since it is smaller than the sum of its proper divisors (28152409540).

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

25555024940 is a wasteful number, since it uses less digits than its factorization.

25555024940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997201 (or 997199 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 25555024940 in words is "twenty-five billion, five hundred fifty-five million, twenty-four thousand, nine hundred forty".