725265 has 24 divisors (see below), whose sum is σ = 1280448. Its totient is φ = 379680.

The previous prime is 725209. The next prime is 725273. The reversal of 725265 is 562527.

It is not a de Polignac number, because 725265 - 2⁶ = 725201 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 725265.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3082 + ... + 3308.

It is an arithmetic number, because the mean of its divisors is an integer number (53352).

2⁷²⁵²⁶⁵ is an apocalyptic number.

It is an amenable number.

725265 is a deficient number, since it is larger than the sum of its proper divisors (555183).

725265 is a wasteful number, since it uses less digits than its factorization.

725265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309 (or 306 counting only the distinct ones).

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

The square root of 725265 is about 851.6249174372. The cubic root of 725265 is about 89.8460330485.

It can be divided in two parts, 725 and 265, that added together give a triangular number (990 = T₄₄).

The spelling of 725265 in words is "seven hundred twenty-five thousand, two hundred sixty-five".