504540891 has 6 divisors (see below), whose sum is σ = 728781300. Its totient is φ = 336360588.

The previous prime is 504540871. The next prime is 504540923. The reversal of 504540891 is 198045405.

It is not a de Polignac number, because 504540891 - 2¹⁴ = 504524507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (504540871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28030041 + ... + 28030058.

It is an arithmetic number, because the mean of its divisors is an integer number (121463550).

Almost surely, 2^504540891 is an apocalyptic number.

504540891 is a deficient number, since it is larger than the sum of its proper divisors (224240409).

504540891 is a wasteful number, since it uses less digits than its factorization.

504540891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56060105 (or 56060102 counting only the distinct ones).

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

The square root of 504540891 is about 22461.9876903181. The cubic root of 504540891 is about 796.0960271305.

The spelling of 504540891 in words is "five hundred four million, five hundred forty thousand, eight hundred ninety-one".