57209231431 has 4 divisors (see below), whose sum is σ = 62410070664. Its totient is φ = 52008392200.

The previous prime is 57209231399. The next prime is 57209231441. The reversal of 57209231431 is 13413290275.

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 57209231431 - 2⁵ = 57209231399 is a prime.

It is a super-2 number, since 2×57209231431² (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 (57209231441) 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, 2600419600 + ... + 2600419621.

It is an arithmetic number, because the mean of its divisors is an integer number (15602517666).

Almost surely, 2^57209231431 is an apocalyptic number.

57209231431 is a deficient number, since it is larger than the sum of its proper divisors (5200839233).

57209231431 is a wasteful number, since it uses less digits than its factorization.

57209231431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5200839232.

The product of its (nonzero) digits is 45360, while the sum is 37.

The spelling of 57209231431 in words is "fifty-seven billion, two hundred nine million, two hundred thirty-one thousand, four hundred thirty-one".