7665625 has 24 divisors (see below), whose sum is σ = 10499328. Its totient is φ = 5550000.

The previous prime is 7665613. The next prime is 7665641. The reversal of 7665625 is 5265667.

It is a de Polignac number, because none of the positive numbers 2^k-7665625 is a prime.

It is a Duffinian number.

7665625 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, 34264 + ... + 34486.

It is an arithmetic number, because the mean of its divisors is an integer number (437472).

Almost surely, 2^7665625 is an apocalyptic number.

It is an amenable number.

7665625 is a deficient number, since it is larger than the sum of its proper divisors (2833703).

7665625 is an equidigital number, since it uses as much as digits as its factorization.

7665625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 239 counting only the distinct ones).

The product of its digits is 75600, while the sum is 37.

The square root of 7665625 is about 2768.6865116874. The cubic root of 7665625 is about 197.1737925419.

Subtracting from 7665625 its product of digits (75600), we obtain a square (7590025 = 2755²).

The spelling of 7665625 in words is "seven million, six hundred sixty-five thousand, six hundred twenty-five".