572217631 has 4 divisors (see below), whose sum is σ = 572602392. Its totient is φ = 571832872.

The previous prime is 572217629. The next prime is 572217697. The reversal of 572217631 is 136712275.

572217631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 572217631 - 2¹ = 572217629 is a prime.

It is a super-2 number, since 2×572217631² = 654866034454504322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (572217601) 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, 190141 + ... + 193126.

It is an arithmetic number, because the mean of its divisors is an integer number (143150598).

Almost surely, 2^572217631 is an apocalyptic number.

572217631 is a deficient number, since it is larger than the sum of its proper divisors (384761).

572217631 is a wasteful number, since it uses less digits than its factorization.

572217631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384760.

The product of its digits is 17640, while the sum is 34.

The square root of 572217631 is about 23921.0708581368. The cubic root of 572217631 is about 830.2083141907.

The spelling of 572217631 in words is "five hundred seventy-two million, two hundred seventeen thousand, six hundred thirty-one".