573961313 has 4 divisors (see below), whose sum is σ = 574169028. Its totient is φ = 573753600.

The previous prime is 573961309. The next prime is 573961357. The reversal of 573961313 is 313169375.

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 345104929 + 228856384 = 18577^2 + 15128^2 .

It is a cyclic number.

It is not a de Polignac number, because 573961313 - 2² = 573961309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (573961393) 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, 99656 + ... + 105257.

It is an arithmetic number, because the mean of its divisors is an integer number (143542257).

Almost surely, 2^573961313 is an apocalyptic number.

It is an amenable number.

573961313 is a deficient number, since it is larger than the sum of its proper divisors (207715).

573961313 is a wasteful number, since it uses less digits than its factorization.

573961313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207714.

The product of its digits is 51030, while the sum is 38.

The square root of 573961313 is about 23957.4897057267. The cubic root of 573961313 is about 831.0507392211.

The spelling of 573961313 in words is "five hundred seventy-three million, nine hundred sixty-one thousand, three hundred thirteen".