56982515 has 4 divisors (see below), whose sum is σ = 68379024. Its totient is φ = 45586008.

The previous prime is 56982503. The next prime is 56982581. The reversal of 56982515 is 51528965.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51528965 = 5 ⋅10305793.

It is a cyclic number.

It is not a de Polignac number, because 56982515 - 2¹² = 56978419 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5698247 + ... + 5698256.

It is an arithmetic number, because the mean of its divisors is an integer number (17094756).

Almost surely, 2^56982515 is an apocalyptic number.

56982515 is a deficient number, since it is larger than the sum of its proper divisors (11396509).

56982515 is a wasteful number, since it uses less digits than its factorization.

56982515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11396508.

The product of its digits is 108000, while the sum is 41.

The square root of 56982515 is about 7548.6763740407. The cubic root of 56982515 is about 384.8107576165.

The spelling of 56982515 in words is "fifty-six million, nine hundred eighty-two thousand, five hundred fifteen".