503015225 has 12 divisors (see below), whose sum is σ = 624017724. Its totient is φ = 402232320.

The previous prime is 503015203. The next prime is 503015231. The reversal of 503015225 is 522510305.

It can be written as a sum of positive squares in 6 ways, for example, as 8219689 + 494795536 = 2867^2 + 22244^2 .

It is not a de Polignac number, because 503015225 - 2¹⁸ = 502753081 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 503015225.

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, 102017 + ... + 106833.

It is an arithmetic number, because the mean of its divisors is an integer number (52001477).

Almost surely, 2^503015225 is an apocalyptic number.

It is an amenable number.

503015225 is a deficient number, since it is larger than the sum of its proper divisors (121002499).

503015225 is a wasteful number, since it uses less digits than its factorization.

503015225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9004 (or 8999 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 503015225 is about 22428.0009140360. Note that the first 3 decimals coincide. The cubic root of 503015225 is about 795.2927866899.

The spelling of 503015225 in words is "five hundred three million, fifteen thousand, two hundred twenty-five".