725625 has 40 divisors (see below), whose sum is σ = 1374560. Its totient is φ = 378000.

The previous prime is 725603. The next prime is 725639. The reversal of 725625 is 526527.

725625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 725625 - 2⁹ = 725113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16854 + ... + 16896.

It is an arithmetic number, because the mean of its divisors is an integer number (34364).

2⁷²⁵⁶²⁵ is an apocalyptic number.

725625 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

725625 is a deficient number, since it is larger than the sum of its proper divisors (648935).

725625 is an equidigital number, since it uses as much as digits as its factorization.

725625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 51 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 725625 is about 851.8362518700. The cubic root of 725625 is about 89.8608962234.

The spelling of 725625 in words is "seven hundred twenty-five thousand, six hundred twenty-five".