56735731 has 8 divisors (see below), whose sum is σ = 61239024. Its totient is φ = 52252320.

The previous prime is 56735719. The next prime is 56735737. The reversal of 56735731 is 13753765.

It is a happy number.

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 56735731 - 2¹⁵ = 56702963 is a prime.

It is a super-2 number, since 2×56735731² = 6437886344208722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56735737) 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 7 ways as a sum of consecutive naturals, for example, 1260 + ... + 10726.

It is an arithmetic number, because the mean of its divisors is an integer number (7654878).

Almost surely, 2^56735731 is an apocalyptic number.

56735731 is a deficient number, since it is larger than the sum of its proper divisors (4503293).

56735731 is a wasteful number, since it uses less digits than its factorization.

56735731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9941.

The product of its digits is 66150, while the sum is 37.

The square root of 56735731 is about 7532.3124603272. The cubic root of 56735731 is about 384.2544316232.

The spelling of 56735731 in words is "fifty-six million, seven hundred thirty-five thousand, seven hundred thirty-one".