504056661 has 32 divisors (see below), whose sum is σ = 724930560. Its totient is φ = 310711104.

The previous prime is 504056653. The next prime is 504056687. The reversal of 504056661 is 166650405.

It is not a de Polignac number, because 504056661 - 2³ = 504056653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504056461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 456436 + ... + 457538.

It is an arithmetic number, because the mean of its divisors is an integer number (22654080).

Almost surely, 2^504056661 is an apocalyptic number.

It is an amenable number.

504056661 is a deficient number, since it is larger than the sum of its proper divisors (220873899).

504056661 is a wasteful number, since it uses less digits than its factorization.

504056661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 504056661 is about 22451.2062259470. The cubic root of 504056661 is about 795.8412628640.

The spelling of 504056661 in words is "five hundred four million, fifty-six thousand, six hundred sixty-one".