56393515 has 16 divisors (see below), whose sum is σ = 68817600. Its totient is φ = 44357632.

The previous prime is 56393509. The next prime is 56393527. The reversal of 56393515 is 51539365.

It is a cyclic number.

It is not a de Polignac number, because 56393515 - 2¹⁹ = 55869227 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 156906 + ... + 157264.

It is an arithmetic number, because the mean of its divisors is an integer number (4301100).

Almost surely, 2^56393515 is an apocalyptic number.

56393515 is a deficient number, since it is larger than the sum of its proper divisors (12424085).

56393515 is a wasteful number, since it uses less digits than its factorization.

56393515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806.

The product of its digits is 60750, while the sum is 37.

The square root of 56393515 is about 7509.5615717564. The cubic root of 56393515 is about 383.4802969365.

The spelling of 56393515 in words is "fifty-six million, three hundred ninety-three thousand, five hundred fifteen".