56022515 has 4 divisors (see below), whose sum is σ = 67227024. Its totient is φ = 44818008.

The previous prime is 56022509. The next prime is 56022517. The reversal of 56022515 is 51522065.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56022515 - 2¹⁸ = 55760371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56022517) 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 3 ways as a sum of consecutive naturals, for example, 5602247 + ... + 5602256.

It is an arithmetic number, because the mean of its divisors is an integer number (16806756).

Almost surely, 2^56022515 is an apocalyptic number.

56022515 is a deficient number, since it is larger than the sum of its proper divisors (11204509).

56022515 is a wasteful number, since it uses less digits than its factorization.

56022515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11204508.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 56022515 is about 7484.8189690867. The cubic root of 56022515 is about 382.6375030721.

The spelling of 56022515 in words is "fifty-six million, twenty-two thousand, five hundred fifteen".