56521562 has 4 divisors (see below), whose sum is σ = 84782346. Its totient is φ = 28260780.

The previous prime is 56521547. The next prime is 56521567. The reversal of 56521562 is 26512565.

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

It can be written as a sum of positive squares in only one way, i.e., 50708641 + 5812921 = 7121^2 + 2411^2 .

It is not an unprimeable number, because it can be changed into a prime (56521567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14130389 + ... + 14130392.

Almost surely, 2^56521562 is an apocalyptic number.

56521562 is a deficient number, since it is larger than the sum of its proper divisors (28260784).

56521562 is a wasteful number, since it uses less digits than its factorization.

56521562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28260783.

The product of its digits is 18000, while the sum is 32.

The square root of 56521562 is about 7518.0823352767. The cubic root of 56521562 is about 383.7703207311.

The spelling of 56521562 in words is "fifty-six million, five hundred twenty-one thousand, five hundred sixty-two".