20572000555 has 8 divisors (see below), whose sum is σ = 25353600912. Its totient is φ = 16012800288.

The previous prime is 20572000523. The next prime is 20572000573. The reversal of 20572000555 is 55500027502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20572000555 - 2⁵ = 20572000523 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55599817 + ... + 55600186.

It is an arithmetic number, because the mean of its divisors is an integer number (3169200114).

Almost surely, 2^20572000555 is an apocalyptic number.

20572000555 is a deficient number, since it is larger than the sum of its proper divisors (4781600357).

20572000555 is a wasteful number, since it uses less digits than its factorization.

20572000555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111200045.

The product of its (nonzero) digits is 17500, while the sum is 31.

The spelling of 20572000555 in words is "twenty billion, five hundred seventy-two million, five hundred fifty-five", and thus it is an aban number.