504925128 has 24 divisors (see below), whose sum is σ = 1367505750. Its totient is φ = 168308352.

The previous prime is 504925111. The next prime is 504925129. The reversal of 504925128 is 821529405.

504925128 is a `hidden beast` number, since 50 + 4 + 92 + 512 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 386594244 + 118330884 = 19662^2 + 10878^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 504925092 and 504925101.

It is not an unprimeable number, because it can be changed into a prime (504925129) 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 5 ways as a sum of consecutive naturals, for example, 3506353 + ... + 3506496.

Almost surely, 2^504925128 is an apocalyptic number.

It is an amenable number.

504925128 is an abundant number, since it is smaller than the sum of its proper divisors (862580622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

504925128 is a wasteful number, since it uses less digits than its factorization.

504925128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7012861 (or 7012854 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 504925128 is about 22470.5391123578. The cubic root of 504925128 is about 796.2980668704.

The spelling of 504925128 in words is "five hundred four million, nine hundred twenty-five thousand, one hundred twenty-eight".