572261 has 4 divisors (see below), whose sum is σ = 602400. Its totient is φ = 542124.

The previous prime is 572251. The next prime is 572269. The reversal of 572261 is 162275.

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 572261 - 2¹⁸ = 310117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (572269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15041 + ... + 15078.

It is an arithmetic number, because the mean of its divisors is an integer number (150600).

2⁵⁷²²⁶¹ is an apocalyptic number.

It is an amenable number.

572261 is a deficient number, since it is larger than the sum of its proper divisors (30139).

572261 is a wasteful number, since it uses less digits than its factorization.

572261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30138.

The product of its digits is 840, while the sum is 23.

The square root of 572261 is about 756.4793453889. The cubic root of 572261 is about 83.0229287793.

The spelling of 572261 in words is "five hundred seventy-two thousand, two hundred sixty-one".