572361961 has 4 divisors (see below), whose sum is σ = 573728400. Its totient is φ = 570995524.

The previous prime is 572361859. The next prime is 572361971. The reversal of 572361961 is 169163275.

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 a de Polignac number, because none of the positive numbers 2^k-572361961 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (572361971) 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, 682591 + ... + 683428.

It is an arithmetic number, because the mean of its divisors is an integer number (143432100).

Almost surely, 2^572361961 is an apocalyptic number.

It is an amenable number.

572361961 is a deficient number, since it is larger than the sum of its proper divisors (1366439).

572361961 is a wasteful number, since it uses less digits than its factorization.

572361961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366438.

The product of its digits is 68040, while the sum is 40.

The square root of 572361961 is about 23924.0874643109. The cubic root of 572361961 is about 830.2781092515.

The spelling of 572361961 in words is "five hundred seventy-two million, three hundred sixty-one thousand, nine hundred sixty-one".