56947231 has 8 divisors (see below), whose sum is σ = 62179200. Its totient is φ = 51724440.

The previous prime is 56947193. The next prime is 56947243. The reversal of 56947231 is 13274965.

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

It is a cyclic number.

It is not a de Polignac number, because 56947231 - 2¹³ = 56939039 is a prime.

It is a super-2 number, since 2×56947231² = 6485974237134722, 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 (56947531) 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, 21160 + ... + 23698.

It is an arithmetic number, because the mean of its divisors is an integer number (7772400).

Almost surely, 2^56947231 is an apocalyptic number.

56947231 is a deficient number, since it is larger than the sum of its proper divisors (5231969).

56947231 is a wasteful number, since it uses less digits than its factorization.

56947231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4589.

The product of its digits is 45360, while the sum is 37.

The square root of 56947231 is about 7546.3389136720. The cubic root of 56947231 is about 384.7313153163.

The spelling of 56947231 in words is "fifty-six million, nine hundred forty-seven thousand, two hundred thirty-one".