56515562 has 4 divisors (see below), whose sum is σ = 84773346. Its totient is φ = 28257780.

The previous prime is 56515553. The next prime is 56515579. The reversal of 56515562 is 26551565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26551565 = 5 ⋅5310313.

It can be written as a sum of positive squares in only one way, i.e., 53421481 + 3094081 = 7309^2 + 1759^2 .

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 as a sum of consecutive naturals, namely, 14128889 + ... + 14128892.

Almost surely, 2^56515562 is an apocalyptic number.

56515562 is a deficient number, since it is larger than the sum of its proper divisors (28257784).

56515562 is a wasteful number, since it uses less digits than its factorization.

56515562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28257783.

The product of its digits is 45000, while the sum is 35.

The square root of 56515562 is about 7517.6832867580. The cubic root of 56515562 is about 383.7567406428.

The spelling of 56515562 in words is "fifty-six million, five hundred fifteen thousand, five hundred sixty-two".