20055657924 has 27 divisors (see below), whose sum is σ = 50698394383. Its totient is φ = 6684936072.

The previous prime is 20055657857. The next prime is 20055657943. The reversal of 20055657924 is 42975655002.

The square root of 20055657924 is 141618.

It is a perfect power (a square), and thus also a powerful number.

20055657924 is a `hidden beast` number, since 2 + 0 + 0 + 5 + 56 + 579 + 24 = 666.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20055657924.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 837907 + ... + 861509.

Almost surely, 2^20055657924 is an apocalyptic number.

20055657924 is the 141618-th square number.

It is an amenable number.

20055657924 is an abundant number, since it is smaller than the sum of its proper divisors (30642736459).

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

20055657924 is an frugal number, since it uses more digits than its factorization.

20055657924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47216 (or 23608 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The spelling of 20055657924 in words is "twenty billion, fifty-five million, six hundred fifty-seven thousand, nine hundred twenty-four".