7504225 has 12 divisors (see below), whose sum is σ = 9853164. Its totient is φ = 5649920.

The previous prime is 7504171. The next prime is 7504241. The reversal of 7504225 is 5224057.

7504225 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 327184 + 7177041 = 572^2 + 2679^2 .

It is not a de Polignac number, because 7504225 - 2⁷ = 7504097 is a prime.

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

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 7504225.

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, 8404 + ... + 9253.

It is an arithmetic number, because the mean of its divisors is an integer number (821097).

Almost surely, 2^7504225 is an apocalyptic number.

It is an amenable number.

7504225 is a deficient number, since it is larger than the sum of its proper divisors (2348939).

7504225 is a wasteful number, since it uses less digits than its factorization.

7504225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17684 (or 17679 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 7504225 is about 2739.3840548561. The cubic root of 7504225 is about 195.7801314159.

The spelling of 7504225 in words is "seven million, five hundred four thousand, two hundred twenty-five".