7165725 has 24 divisors (see below), whose sum is σ = 13540800. Its totient is φ = 3275520.

The previous prime is 7165699. The next prime is 7165729. The reversal of 7165725 is 5275617.

It is not a de Polignac number, because 7165725 - 2⁶ = 7165661 is a prime.

It is a super-2 number, since 2×7165725² = 102695229551250, which contains 22 as substring.

7165725 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7165729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6300 + ... + 7349.

It is an arithmetic number, because the mean of its divisors is an integer number (564200).

Almost surely, 2^7165725 is an apocalyptic number.

7165725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7165725 is a deficient number, since it is larger than the sum of its proper divisors (6375075).

7165725 is a wasteful number, since it uses less digits than its factorization.

7165725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13669 (or 13664 counting only the distinct ones).

The product of its digits is 14700, while the sum is 33.

The square root of 7165725 is about 2676.8871847726. The cubic root of 7165725 is about 192.7909806361.

It can be divided in two parts, 716 and 5725, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 7165725 in words is "seven million, one hundred sixty-five thousand, seven hundred twenty-five".