504520861 has 8 divisors (see below), whose sum is σ = 546585984. Its totient is φ = 462920880.

The previous prime is 504520853. The next prime is 504520873. The reversal of 504520861 is 168025405.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 504520861 - 2³ = 504520853 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 (504520811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114025 + ... + 118366.

It is an arithmetic number, because the mean of its divisors is an integer number (68323248).

Almost surely, 2^504520861 is an apocalyptic number.

It is an amenable number.

504520861 is a deficient number, since it is larger than the sum of its proper divisors (42065123).

504520861 is a wasteful number, since it uses less digits than its factorization.

504520861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232571.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 504520861 is about 22461.5418215224. The cubic root of 504520861 is about 796.0854921307.

The spelling of 504520861 in words is "five hundred four million, five hundred twenty thousand, eight hundred sixty-one".