57311243 has 16 divisors (see below), whose sum is σ = 64022400. Its totient is φ = 50863680.

The previous prime is 57311237. The next prime is 57311273. The reversal of 57311243 is 34211375.

It is a cyclic number.

It is not a de Polignac number, because 57311243 - 2¹⁴ = 57294859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57311203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151028 + ... + 151406.

It is an arithmetic number, because the mean of its divisors is an integer number (4001400).

Almost surely, 2^57311243 is an apocalyptic number.

57311243 is a deficient number, since it is larger than the sum of its proper divisors (6711157).

57311243 is a wasteful number, since it uses less digits than its factorization.

57311243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682.

The product of its digits is 2520, while the sum is 26.

The square root of 57311243 is about 7570.4189448141. The cubic root of 57311243 is about 385.5493209848.

The spelling of 57311243 in words is "fifty-seven million, three hundred eleven thousand, two hundred forty-three".