56361731 has 8 divisors (see below), whose sum is σ = 57182160. Its totient is φ = 55544832.

The previous prime is 56361727. The next prime is 56361769. The reversal of 56361731 is 13716365.

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 56361731 - 2² = 56361727 is a prime.

It is a super-2 number, since 2×56361731² = 6353289442632722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56361791) 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, 55355 + ... + 56363.

It is an arithmetic number, because the mean of its divisors is an integer number (7147770).

Almost surely, 2^56361731 is an apocalyptic number.

56361731 is a deficient number, since it is larger than the sum of its proper divisors (820429).

56361731 is a wasteful number, since it uses less digits than its factorization.

56361731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765.

The product of its digits is 11340, while the sum is 32.

The square root of 56361731 is about 7507.4450380939. The cubic root of 56361731 is about 383.4082388382.

The spelling of 56361731 in words is "fifty-six million, three hundred sixty-one thousand, seven hundred thirty-one".