57021720590 has 16 divisors (see below), whose sum is σ = 102687165072. Its totient is φ = 22798006464.

The previous prime is 57021720577. The next prime is 57021720611. The reversal of 57021720590 is 9502712075.

It is a congruent 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, 1312784 + ... + 1355523.

It is an arithmetic number, because the mean of its divisors is an integer number (6417947817).

Almost surely, 2^57021720590 is an apocalyptic number.

57021720590 is a deficient number, since it is larger than the sum of its proper divisors (45665444482).

57021720590 is a wasteful number, since it uses less digits than its factorization.

57021720590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2670451.

The product of its (nonzero) digits is 44100, while the sum is 38.

The spelling of 57021720590 in words is "fifty-seven billion, twenty-one million, seven hundred twenty thousand, five hundred ninety".