500191225 has 12 divisors (see below), whose sum is σ = 620523900. Its totient is φ = 399968000.

The previous prime is 500191213. The next prime is 500191253. The reversal of 500191225 is 522191005.

It can be written as a sum of positive squares in 6 ways, for example, as 14561856 + 485629369 = 3816^2 + 22037^2 .

It is not a de Polignac number, because 500191225 - 2⁵ = 500191193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 500191225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83325 + ... + 89125.

It is an arithmetic number, because the mean of its divisors is an integer number (51710325).

Almost surely, 2^500191225 is an apocalyptic number.

It is an amenable number.

500191225 is a deficient number, since it is larger than the sum of its proper divisors (120332675).

500191225 is a wasteful number, since it uses less digits than its factorization.

500191225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9260 (or 9255 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 500191225 is about 22364.9552872345. The cubic root of 500191225 is about 793.8016966763.

The spelling of 500191225 in words is "five hundred million, one hundred ninety-one thousand, two hundred twenty-five".