56310729 has 8 divisors (see below), whose sum is σ = 75496512. Its totient is φ = 37332720.

The previous prime is 56310703. The next prime is 56310733. The reversal of 56310729 is 92701365.

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

It is not a de Polignac number, because 56310729 - 2¹³ = 56302537 is a prime.

It is a super-2 number, since 2×56310729² = 6341796401022882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56310729.

It is not an unprimeable number, because it can be changed into a prime (56310799) 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, 51309 + ... + 52394.

It is an arithmetic number, because the mean of its divisors is an integer number (9437064).

Almost surely, 2^56310729 is an apocalyptic number.

It is an amenable number.

56310729 is a deficient number, since it is larger than the sum of its proper divisors (19185783).

56310729 is a wasteful number, since it uses less digits than its factorization.

56310729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103887.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 56310729 is about 7504.0475078453. The cubic root of 56310729 is about 383.2925546203.

The spelling of 56310729 in words is "fifty-six million, three hundred ten thousand, seven hundred twenty-nine".