504664331 has 4 divisors (see below), whose sum is σ = 504738312. Its totient is φ = 504590352.

The previous prime is 504664327. The next prime is 504664399. The reversal of 504664331 is 133466405.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 504664331 - 2² = 504664327 is a prime.

It is a super-2 number, since 2×504664331² = 509372173967355122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504664231) 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, 25586 + ... + 40791.

It is an arithmetic number, because the mean of its divisors is an integer number (126184578).

Almost surely, 2^504664331 is an apocalyptic number.

504664331 is a deficient number, since it is larger than the sum of its proper divisors (73981).

504664331 is an equidigital number, since it uses as much as digits as its factorization.

504664331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73980.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 504664331 is about 22464.7352755380. The cubic root of 504664331 is about 796.1609456086.

The spelling of 504664331 in words is "five hundred four million, six hundred sixty-four thousand, three hundred thirty-one".