56636722 has 4 divisors (see below), whose sum is σ = 84955086. Its totient is φ = 28318360.

The previous prime is 56636683. The next prime is 56636729. The reversal of 56636722 is 22763665.

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., 40947201 + 15689521 = 6399^2 + 3961^2 .

It is not an unprimeable number, because it can be changed into a prime (56636729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14159179 + ... + 14159182.

Almost surely, 2^56636722 is an apocalyptic number.

56636722 is a deficient number, since it is larger than the sum of its proper divisors (28318364).

56636722 is a wasteful number, since it uses less digits than its factorization.

56636722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28318363.

The product of its digits is 90720, while the sum is 37.

The square root of 56636722 is about 7525.7373060717. The cubic root of 56636722 is about 384.0307818568.

The spelling of 56636722 in words is "fifty-six million, six hundred thirty-six thousand, seven hundred twenty-two".