57044870513 has 4 divisors (see below), whose sum is σ = 57052287600. Its totient is φ = 57037453428.

The previous prime is 57044870507. The next prime is 57044870527. The reversal of 57044870513 is 31507844075.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57044870513 - 2¹⁶ = 57044804977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57044870573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3696995 + ... + 3712392.

It is an arithmetic number, because the mean of its divisors is an integer number (14263071900).

Almost surely, 2^57044870513 is an apocalyptic number.

It is an amenable number.

57044870513 is a deficient number, since it is larger than the sum of its proper divisors (7417087).

57044870513 is an equidigital number, since it uses as much as digits as its factorization.

57044870513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7417086.

The product of its (nonzero) digits is 470400, while the sum is 44.

The spelling of 57044870513 in words is "fifty-seven billion, forty-four million, eight hundred seventy thousand, five hundred thirteen".