56497515 has 16 divisors (see below), whose sum is σ = 91929600. Its totient is φ = 29620832.

The previous prime is 56497513. The next prime is 56497537. The reversal of 56497515 is 51579465.

It is not a de Polignac number, because 56497515 - 2¹ = 56497513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56497513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31035 + ... + 32804.

It is an arithmetic number, because the mean of its divisors is an integer number (5745600).

Almost surely, 2^56497515 is an apocalyptic number.

56497515 is a deficient number, since it is larger than the sum of its proper divisors (35432085).

56497515 is a wasteful number, since it uses less digits than its factorization.

56497515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63906.

The product of its digits is 189000, while the sum is 42.

The square root of 56497515 is about 7516.4828876277. The cubic root of 56497515 is about 383.7158882063.

The spelling of 56497515 in words is "fifty-six million, four hundred ninety-seven thousand, five hundred fifteen".