7165625 has 12 divisors (see below), whose sum is σ = 8960364. Its totient is φ = 5730000.

The previous prime is 7165621. The next prime is 7165633. The reversal of 7165625 is 5265617.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 6446521 + 719104 = 2539^2 + 848^2 .

It is not a de Polignac number, because 7165625 - 2² = 7165621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7165591 and 7165600.

It is not an unprimeable number, because it can be changed into a prime (7165621) 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, 1979 + ... + 4271.

It is an arithmetic number, because the mean of its divisors is an integer number (746697).

Almost surely, 2^7165625 is an apocalyptic number.

It is an amenable number.

7165625 is a deficient number, since it is larger than the sum of its proper divisors (1794739).

7165625 is an frugal number, since it uses more digits than its factorization.

7165625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318 (or 2298 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 7165625 is about 2676.8685062961. The cubic root of 7165625 is about 192.7900838119.

The spelling of 7165625 in words is "seven million, one hundred sixty-five thousand, six hundred twenty-five".