56959531 has 8 divisors (see below), whose sum is σ = 57579120. Its totient is φ = 56343168.

The previous prime is 56959519. The next prime is 56959541. The reversal of 56959531 is 13595965.

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

It is not a de Polignac number, because 56959531 - 2¹³ = 56951339 is a prime.

It is a super-2 number, since 2×56959531² = 6488776343479922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56959541) 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, 51375 + ... + 52471.

It is an arithmetic number, because the mean of its divisors is an integer number (7197390).

Almost surely, 2^56959531 is an apocalyptic number.

56959531 is a deficient number, since it is larger than the sum of its proper divisors (619589).

56959531 is a wasteful number, since it uses less digits than its factorization.

56959531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613.

The product of its digits is 182250, while the sum is 43.

The square root of 56959531 is about 7547.1538343935. The cubic root of 56959531 is about 384.7590126215.

The spelling of 56959531 in words is "fifty-six million, nine hundred fifty-nine thousand, five hundred thirty-one".