57221757431 has 4 divisors (see below), whose sum is σ = 59709659952. Its totient is φ = 54733854912.

The previous prime is 57221757419. The next prime is 57221757449. The reversal of 57221757431 is 13475712275.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57221757431 - 2⁶ = 57221757367 is a prime.

It is a super-2 number, since 2×57221757431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57221757451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1243951226 + ... + 1243951271.

It is an arithmetic number, because the mean of its divisors is an integer number (14927414988).

Almost surely, 2^57221757431 is an apocalyptic number.

57221757431 is a deficient number, since it is larger than the sum of its proper divisors (2487902521).

57221757431 is a wasteful number, since it uses less digits than its factorization.

57221757431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487902520.

The product of its digits is 411600, while the sum is 44.

The spelling of 57221757431 in words is "fifty-seven billion, two hundred twenty-one million, seven hundred fifty-seven thousand, four hundred thirty-one".