57056651571 has 32 divisors (see below), whose sum is σ = 78314987520. Its totient is φ = 36939297024.

The previous prime is 57056651549. The next prime is 57056651579. The reversal of 57056651571 is 17515665075.

It is not a de Polignac number, because 57056651571 - 2⁹ = 57056651059 is a prime.

It is a super-2 number, since 2×57056651571² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57056651571.

It is not an unprimeable number, because it can be changed into a prime (57056651579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3438631 + ... + 3455183.

It is an arithmetic number, because the mean of its divisors is an integer number (2447343360).

Almost surely, 2^57056651571 is an apocalyptic number.

57056651571 is a deficient number, since it is larger than the sum of its proper divisors (21258335949).

57056651571 is a wasteful number, since it uses less digits than its factorization.

57056651571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16875.

The product of its (nonzero) digits is 1102500, while the sum is 48.

The spelling of 57056651571 in words is "fifty-seven billion, fifty-six million, six hundred fifty-one thousand, five hundred seventy-one".