56395520072 has 8 divisors (see below), whose sum is σ = 105741600150. Its totient is φ = 28197760032.

The previous prime is 56395520039. The next prime is 56395520099. The reversal of 56395520072 is 27002559365.

It can be written as a sum of positive squares in only one way, i.e., 42441768196 + 13953751876 = 206014^2 + 118126^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3524719997 + ... + 3524720012.

Almost surely, 2^56395520072 is an apocalyptic number.

It is an amenable number.

56395520072 is a deficient number, since it is larger than the sum of its proper divisors (49346080078).

56395520072 is a wasteful number, since it uses less digits than its factorization.

56395520072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7049440015 (or 7049440011 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 44.

The spelling of 56395520072 in words is "fifty-six billion, three hundred ninety-five million, five hundred twenty thousand, seventy-two".