20524879904 has 36 divisors (see below), whose sum is σ = 40640019966. Its totient is φ = 10203666432.

The previous prime is 20524879889. The next prime is 20524879913. The reversal of 20524879904 is 40997842502.

It can be written as a sum of positive squares in only one way, i.e., 19195548304 + 1329331600 = 138548^2 + 36460^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11257937 + ... + 11259759.

Almost surely, 2^20524879904 is an apocalyptic number.

It is an amenable number.

20524879904 is a deficient number, since it is larger than the sum of its proper divisors (20115140062).

20524879904 is an frugal number, since it uses more digits than its factorization.

20524879904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849 (or 2018 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 20524879904 in words is "twenty billion, five hundred twenty-four million, eight hundred seventy-nine thousand, nine hundred four".