573712261 has 4 divisors (see below), whose sum is σ = 576882124. Its totient is φ = 570542400.

The previous prime is 573712231. The next prime is 573712267. The reversal of 573712261 is 162217375.

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 40564161 + 533148100 = 6369^2 + 23090^2 .

It is a cyclic number.

It is not a de Polignac number, because 573712261 - 2²³ = 565323653 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 (573712267) 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, 1584660 + ... + 1585021.

It is an arithmetic number, because the mean of its divisors is an integer number (144220531).

Almost surely, 2^573712261 is an apocalyptic number.

It is an amenable number.

573712261 is a deficient number, since it is larger than the sum of its proper divisors (3169863).

573712261 is a wasteful number, since it uses less digits than its factorization.

573712261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3169862.

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

The square root of 573712261 is about 23952.2913517684. The cubic root of 573712261 is about 830.9305192760.

The spelling of 573712261 in words is "five hundred seventy-three million, seven hundred twelve thousand, two hundred sixty-one".