56837231 has 4 divisors (see below), whose sum is σ = 62004264. Its totient is φ = 51670200.

The previous prime is 56837219. The next prime is 56837251. The reversal of 56837231 is 13273865.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56837231 is a prime.

It is a super-2 number, since 2×56837231² = 6460941655494722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56837191 and 56837200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56837251) 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, 2583500 + ... + 2583521.

It is an arithmetic number, because the mean of its divisors is an integer number (15501066).

Almost surely, 2^56837231 is an apocalyptic number.

56837231 is a deficient number, since it is larger than the sum of its proper divisors (5167033).

56837231 is a wasteful number, since it uses less digits than its factorization.

56837231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5167032.

The product of its digits is 30240, while the sum is 35.

The square root of 56837231 is about 7539.0470883262. The cubic root of 56837231 is about 384.4834383366.

The spelling of 56837231 in words is "fifty-six million, eight hundred thirty-seven thousand, two hundred thirty-one".