725825 has 6 divisors (see below), whose sum is σ = 900054. Its totient is φ = 580640.

The previous prime is 725807. The next prime is 725827. The reversal of 725825 is 528527.

It can be written as a sum of positive squares in 3 ways, for example, as 21904 + 703921 = 148^2 + 839^2 .

It is a de Polignac number, because none of the positive numbers 2^k-725825 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 725825.

It is not an unprimeable number, because it can be changed into a prime (725827) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14492 + ... + 14541.

It is an arithmetic number, because the mean of its divisors is an integer number (150009).

2⁷²⁵⁸²⁵ is an apocalyptic number.

It is an amenable number.

725825 is a deficient number, since it is larger than the sum of its proper divisors (174229).

725825 is a wasteful number, since it uses less digits than its factorization.

725825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29043 (or 29038 counting only the distinct ones).

The product of its digits is 5600, while the sum is 29.

The square root of 725825 is about 851.9536372362. The cubic root of 725825 is about 89.8691514187.

The spelling of 725825 in words is "seven hundred twenty-five thousand, eight hundred twenty-five".