572118257 has 4 divisors (see below), whose sum is σ = 574616820. Its totient is φ = 569619696.

The previous prime is 572118251. The next prime is 572118259. The reversal of 572118257 is 752811275.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 372065521 + 200052736 = 19289^2 + 14144^2 .

It is a cyclic number.

It is not a de Polignac number, because 572118257 - 2¹⁰ = 572117233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 572118257.

It is not an unprimeable number, because it can be changed into a prime (572118251) 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, 1248938 + ... + 1249395.

It is an arithmetic number, because the mean of its divisors is an integer number (143654205).

Almost surely, 2^572118257 is an apocalyptic number.

It is an amenable number.

572118257 is a deficient number, since it is larger than the sum of its proper divisors (2498563).

572118257 is a wasteful number, since it uses less digits than its factorization.

572118257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498562.

The product of its digits is 39200, while the sum is 38.

The square root of 572118257 is about 23918.9936452184. The cubic root of 572118257 is about 830.1602521173.

The spelling of 572118257 in words is "five hundred seventy-two million, one hundred eighteen thousand, two hundred fifty-seven".