504538857 has 24 divisors (see below), whose sum is σ = 755176448. Its totient is φ = 324259200.

The previous prime is 504538849. The next prime is 504538871. The reversal of 504538857 is 758835405.

It is not a de Polignac number, because 504538857 - 2³ = 504538849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504538817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72273 + ... + 78945.

Almost surely, 2^504538857 is an apocalyptic number.

It is an amenable number.

504538857 is a deficient number, since it is larger than the sum of its proper divisors (250637591).

504538857 is a wasteful number, since it uses less digits than its factorization.

504538857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6981 (or 6978 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The square root of 504538857 is about 22461.9424137807. The cubic root of 504538857 is about 796.0949573384.

The spelling of 504538857 in words is "five hundred four million, five hundred thirty-eight thousand, eight hundred fifty-seven".