56577172722257 has 8 divisors (see below), whose sum is σ = 62414041410720. Its totient is φ = 50855885592160.

The previous prime is 56577172722127. The next prime is 56577172722289. The reversal of 56577172722257 is 75222727177565.

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

It is not a de Polignac number, because 56577172722257 - 2¹² = 56577172718161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56577172722193 and 56577172722202.

It is not an unprimeable number, because it can be changed into a prime (56577172722857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28895388563 + ... + 28895390520.

It is an arithmetic number, because the mean of its divisors is an integer number (7801755176340).

Almost surely, 2^{56577172722257} is an apocalyptic number.

It is an amenable number.

56577172722257 is a deficient number, since it is larger than the sum of its proper divisors (5836868688463).

56577172722257 is a wasteful number, since it uses less digits than its factorization.

56577172722257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57790779183.

The product of its digits is 201684000, while the sum is 65.

The spelling of 56577172722257 in words is "fifty-six trillion, five hundred seventy-seven billion, one hundred seventy-two million, seven hundred twenty-two thousand, two hundred fifty-seven".