504500091 has 16 divisors (see below), whose sum is σ = 686112000. Its totient is φ = 329645088.

The previous prime is 504500089. The next prime is 504500119. The reversal of 504500091 is 190005405.

It is not a de Polignac number, because 504500091 - 2¹ = 504500089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (504580091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57690 + ... + 65856.

It is an arithmetic number, because the mean of its divisors is an integer number (42882000).

Almost surely, 2^504500091 is an apocalyptic number.

504500091 is a deficient number, since it is larger than the sum of its proper divisors (181611909).

504500091 is a wasteful number, since it uses less digits than its factorization.

504500091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8578.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 504500091 is about 22461.0794709426. The cubic root of 504500091 is about 796.0745676254.

Adding to 504500091 its reverse (190005405), we get a palindrome (694505496).

The spelling of 504500091 in words is "five hundred four million, five hundred thousand, ninety-one".