56057243 has 6 divisors (see below), whose sum is σ = 61616772. Its totient is φ = 50961020.

The previous prime is 56057219. The next prime is 56057293. The reversal of 56057243 is 34275065.

It is not a de Polignac number, because 56057243 - 2¹² = 56053147 is a prime.

It is a super-2 number, since 2×56057243² = 6284828985522098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56057213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 231521 + ... + 231762.

It is an arithmetic number, because the mean of its divisors is an integer number (10269462).

Almost surely, 2^56057243 is an apocalyptic number.

56057243 is a deficient number, since it is larger than the sum of its proper divisors (5559529).

56057243 is a wasteful number, since it uses less digits than its factorization.

56057243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463305 (or 463294 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 56057243 is about 7487.1385054639. The cubic root of 56057243 is about 382.7165515902.

The spelling of 56057243 in words is "fifty-six million, fifty-seven thousand, two hundred forty-three".