7499225 has 6 divisors (see below), whose sum is σ = 9299070. Its totient is φ = 5999360.

The previous prime is 7499209. The next prime is 7499231. The reversal of 7499225 is 5229947.

It can be written as a sum of positive squares in 3 ways, for example, as 444889 + 7054336 = 667^2 + 2656^2 .

It is not a de Polignac number, because 7499225 - 2⁴ = 7499209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 149960 + ... + 150009.

It is an arithmetic number, because the mean of its divisors is an integer number (1549845).

Almost surely, 2^7499225 is an apocalyptic number.

It is an amenable number.

7499225 is a deficient number, since it is larger than the sum of its proper divisors (1799845).

7499225 is a wasteful number, since it uses less digits than its factorization.

7499225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299979 (or 299974 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The square root of 7499225 is about 2738.4712888763. The cubic root of 7499225 is about 195.7366395541.

It can be divided in two parts, 74 and 99225, that added together give a palindrome (99299).

The spelling of 7499225 in words is "seven million, four hundred ninety-nine thousand, two hundred twenty-five".