57012022157 has 4 divisors (see below), whose sum is σ = 57026397696. Its totient is φ = 56997646620.

The previous prime is 57012022147. The next prime is 57012022163. The reversal of 57012022157 is 75122021075.

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 57012022157 - 2¹⁰ = 57012021133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57012022147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7181819 + ... + 7189752.

It is an arithmetic number, because the mean of its divisors is an integer number (14256599424).

Almost surely, 2^57012022157 is an apocalyptic number.

It is an amenable number.

57012022157 is a deficient number, since it is larger than the sum of its proper divisors (14375539).

57012022157 is a wasteful number, since it uses less digits than its factorization.

57012022157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14375538.

The product of its (nonzero) digits is 9800, while the sum is 32.

The spelling of 57012022157 in words is "fifty-seven billion, twelve million, twenty-two thousand, one hundred fifty-seven".