57512221573 has 2 divisors, whose sum is σ = 57512221574. Its totient is φ = 57512221572.

The previous prime is 57512221553. The next prime is 57512221619. The reversal of 57512221573 is 37512221575.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29139514209 + 28372707364 = 170703^2 + 168442^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57512221573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57512221553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28756110786 + 28756110787.

It is an arithmetic number, because the mean of its divisors is an integer number (28756110787).

Almost surely, 2^57512221573 is an apocalyptic number.

It is an amenable number.

57512221573 is a deficient number, since it is larger than the sum of its proper divisors (1).

57512221573 is an equidigital number, since it uses as much as digits as its factorization.

57512221573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 147000, while the sum is 40.

It can be divided in two parts, 575122 and 21573, that added together give a palindrome (596695).

The spelling of 57512221573 in words is "fifty-seven billion, five hundred twelve million, two hundred twenty-one thousand, five hundred seventy-three".