504116475561 has 6 divisors (see below), whose sum is σ = 728168242490. Its totient is φ = 336077650368.

The previous prime is 504116475553. The next prime is 504116475571. The reversal of 504116475561 is 165574611405.

504116475561 is a `hidden beast` number, since 5 + 0 + 4 + 1 + 16 + 4 + 75 + 561 = 666.

It can be written as a sum of positive squares in only one way, i.e., 310520875536 + 193595600025 = 557244^2 + 439995^2 .

It is not a de Polignac number, because 504116475561 - 2³ = 504116475553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504116475571) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28006470856 + ... + 28006470873.

Almost surely, 2^504116475561 is an apocalyptic number.

It is an amenable number.

504116475561 is a deficient number, since it is larger than the sum of its proper divisors (224051766929).

504116475561 is a wasteful number, since it uses less digits than its factorization.

504116475561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56012941735 (or 56012941732 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

The spelling of 504116475561 in words is "five hundred four billion, one hundred sixteen million, four hundred seventy-five thousand, five hundred sixty-one".