56731715 has 8 divisors (see below), whose sum is σ = 68843520. Its totient is φ = 44875072.

The previous prime is 56731699. The next prime is 56731729. The reversal of 56731715 is 51713765.

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 56731715 - 2⁴ = 56731699 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63299 + ... + 64188.

It is an arithmetic number, because the mean of its divisors is an integer number (8605440).

Almost surely, 2^56731715 is an apocalyptic number.

56731715 is a deficient number, since it is larger than the sum of its proper divisors (12111805).

56731715 is a wasteful number, since it uses less digits than its factorization.

56731715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127581.

The product of its digits is 22050, while the sum is 35.

The square root of 56731715 is about 7532.0458708109. The cubic root of 56731715 is about 384.2453650134.

The spelling of 56731715 in words is "fifty-six million, seven hundred thirty-one thousand, seven hundred fifteen".