572413661 has 4 divisors (see below), whose sum is σ = 572574432. Its totient is φ = 572252892.

The previous prime is 572413651. The next prime is 572413757. The reversal of 572413661 is 166314275.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 572413661 - 2²⁶ = 505304797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (572413601) 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, 74921 + ... + 82206.

It is an arithmetic number, because the mean of its divisors is an integer number (143143608).

Almost surely, 2^572413661 is an apocalyptic number.

It is an amenable number.

572413661 is a deficient number, since it is larger than the sum of its proper divisors (160771).

572413661 is a wasteful number, since it uses less digits than its factorization.

572413661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160770.

The product of its digits is 30240, while the sum is 35.

The square root of 572413661 is about 23925.1679408944. The cubic root of 572413661 is about 830.3031074687.

The spelling of 572413661 in words is "five hundred seventy-two million, four hundred thirteen thousand, six hundred sixty-one".