56621053344 has 48 divisors (see below), whose sum is σ = 155092456512. Its totient is φ = 18053088768.

The previous prime is 56621053337. The next prime is 56621053403. The reversal of 56621053344 is 44335012665.

It is a tau number, because it is divible by the number of its divisors (48).

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 in 7 ways as a sum of consecutive naturals, for example, 12819589 + ... + 12824004.

It is an arithmetic number, because the mean of its divisors is an integer number (3231092844).

Almost surely, 2^56621053344 is an apocalyptic number.

It is an amenable number.

56621053344 is an abundant number, since it is smaller than the sum of its proper divisors (98471403168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56621053344 is a wasteful number, since it uses less digits than its factorization.

56621053344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25643629 (or 25643621 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 56621053344 in words is "fifty-six billion, six hundred twenty-one million, fifty-three thousand, three hundred forty-four".