57253431 has 8 divisors (see below), whose sum is σ = 76445824. Its totient is φ = 38115000.

The previous prime is 57253429. The next prime is 57253439. The reversal of 57253431 is 13435275.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57253431 - 2¹ = 57253429 is a prime.

It is a super-2 number, since 2×57253431² = 6555910722543522, which 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 (57253439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10945 + ... + 15306.

It is an arithmetic number, because the mean of its divisors is an integer number (9555728).

Almost surely, 2^57253431 is an apocalyptic number.

57253431 is a deficient number, since it is larger than the sum of its proper divisors (19192393).

57253431 is a wasteful number, since it uses less digits than its factorization.

57253431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26981.

The product of its digits is 12600, while the sum is 30.

The square root of 57253431 is about 7566.5996986758. The cubic root of 57253431 is about 385.4196380169.

The spelling of 57253431 in words is "fifty-seven million, two hundred fifty-three thousand, four hundred thirty-one".