7538225 has 12 divisors (see below), whose sum is σ = 9897804. Its totient is φ = 5675520.

The previous prime is 7538221. The next prime is 7538233. The reversal of 7538225 is 5228357.

It can be written as a sum of positive squares in 6 ways, for example, as 350464 + 7187761 = 592^2 + 2681^2 .

It is not a de Polignac number, because 7538225 - 2² = 7538221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7538191 and 7538200.

It is not an unprimeable number, because it can be changed into a prime (7538221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8444 + ... + 9293.

It is an arithmetic number, because the mean of its divisors is an integer number (824817).

Almost surely, 2^7538225 is an apocalyptic number.

It is an amenable number.

7538225 is a deficient number, since it is larger than the sum of its proper divisors (2359579).

7538225 is a wasteful number, since it uses less digits than its factorization.

7538225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17764 (or 17759 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 7538225 is about 2745.5828160884. The cubic root of 7538225 is about 196.0753649504.

The spelling of 7538225 in words is "seven million, five hundred thirty-eight thousand, two hundred twenty-five".