56735231 has 8 divisors (see below), whose sum is σ = 65622144. Its totient is φ = 48043800.

The previous prime is 56735221. The next prime is 56735233. The reversal of 56735231 is 13253765.

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

It is not a de Polignac number, because 56735231 - 2²² = 52540927 is a prime.

It is a super-2 number, since 2×56735231² = 6437772873246722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56735233) 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, 48245 + ... + 49406.

It is an arithmetic number, because the mean of its divisors is an integer number (8202768).

Almost surely, 2^56735231 is an apocalyptic number.

56735231 is a deficient number, since it is larger than the sum of its proper divisors (8886913).

56735231 is an equidigital number, since it uses as much as digits as its factorization.

56735231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97741.

The product of its digits is 18900, while the sum is 32.

The square root of 56735231 is about 7532.2792699156. The cubic root of 56735231 is about 384.2533028355.

Adding to 56735231 its reverse (13253765), we get a palindrome (69988996).

The spelling of 56735231 in words is "fifty-six million, seven hundred thirty-five thousand, two hundred thirty-one".