7657225 has 24 divisors (see below), whose sum is σ = 10311840. Its totient is φ = 5617920.

The previous prime is 7657159. The next prime is 7657253. The reversal of 7657225 is 5227567.

It is a happy number.

7657225 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7657225 - 2⁹ = 7656713 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

7657225 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18066 + ... + 18484.

It is an arithmetic number, because the mean of its divisors is an integer number (429660).

Almost surely, 2^7657225 is an apocalyptic number.

It is an amenable number.

7657225 is a deficient number, since it is larger than the sum of its proper divisors (2654615).

7657225 is a wasteful number, since it uses less digits than its factorization.

7657225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 484 counting only the distinct ones).

The product of its digits is 29400, while the sum is 34.

The square root of 7657225 is about 2767.1691310796. The cubic root of 7657225 is about 197.1017451353.

The spelling of 7657225 in words is "seven million, six hundred fifty-seven thousand, two hundred twenty-five".