56299231 has 4 divisors (see below), whose sum is σ = 56566264. Its totient is φ = 56032200.

The previous prime is 56299213. The next prime is 56299241. The reversal of 56299231 is 13299265.

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

It is a cyclic number.

It is not a de Polignac number, because 56299231 - 2¹⁷ = 56168159 is a prime.

It is a super-2 number, since 2×56299231² = 6339206822382722, 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 (56299211) 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 3 ways as a sum of consecutive naturals, for example, 133200 + ... + 133621.

It is an arithmetic number, because the mean of its divisors is an integer number (14141566).

Almost surely, 2^56299231 is an apocalyptic number.

56299231 is a deficient number, since it is larger than the sum of its proper divisors (267033).

56299231 is a wasteful number, since it uses less digits than its factorization.

56299231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267032.

The product of its digits is 29160, while the sum is 37.

The square root of 56299231 is about 7503.2813488500. The cubic root of 56299231 is about 383.2664648747.

The spelling of 56299231 in words is "fifty-six million, two hundred ninety-nine thousand, two hundred thirty-one".