56572172446 has 8 divisors (see below), whose sum is σ = 84867282864. Its totient is φ = 28283078160.

The previous prime is 56572172441. The next prime is 56572172473. The reversal of 56572172446 is 64427127565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 56572172446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56572172441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1480450 + ... + 1518181.

It is an arithmetic number, because the mean of its divisors is an integer number (10608410358).

Almost surely, 2^56572172446 is an apocalyptic number.

56572172446 is a deficient number, since it is larger than the sum of its proper divisors (28295110418).

56572172446 is a wasteful number, since it uses less digits than its factorization.

56572172446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3008066.

The product of its digits is 2822400, while the sum is 49.

The spelling of 56572172446 in words is "fifty-six billion, five hundred seventy-two million, one hundred seventy-two thousand, four hundred forty-six".