20373525256 has 16 divisors (see below), whose sum is σ = 43657554240. Its totient is φ = 8731510800.

The previous prime is 20373525247. The next prime is 20373525269. The reversal of 20373525256 is 65252537302.

It is a happy number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 181906420 + ... + 181906531.

It is an arithmetic number, because the mean of its divisors is an integer number (2728597140).

Almost surely, 2^20373525256 is an apocalyptic number.

It is an amenable number.

20373525256 is an abundant number, since it is smaller than the sum of its proper divisors (23284028984).

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

20373525256 is a wasteful number, since it uses less digits than its factorization.

20373525256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363812964 (or 363812960 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 40.

The spelling of 20373525256 in words is "twenty billion, three hundred seventy-three million, five hundred twenty-five thousand, two hundred fifty-six".