57013782020 has 24 divisors (see below), whose sum is σ = 128938861464. Its totient is φ = 21051242496.

The previous prime is 57013781947. The next prime is 57013782127. The reversal of 57013782020 is 2028731075.

It can be written as a sum of positive squares in 4 ways, for example, as 1234679044 + 55779102976 = 35138^2 + 236176^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109641629 + ... + 109642148.

It is an arithmetic number, because the mean of its divisors is an integer number (5372452561).

Almost surely, 2^57013782020 is an apocalyptic number.

It is an amenable number.

57013782020 is an abundant number, since it is smaller than the sum of its proper divisors (71925079444).

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

57013782020 is a wasteful number, since it uses less digits than its factorization.

57013782020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219283799 (or 219283797 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The spelling of 57013782020 in words is "fifty-seven billion, thirteen million, seven hundred eighty-two thousand, twenty".