725269 has 4 divisors (see below), whose sum is σ = 732844. Its totient is φ = 717696.

The previous prime is 725209. The next prime is 725273. The reversal of 725269 is 962527.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 962527 = 23 ⋅41849.

It can be written as a sum of positive squares in 2 ways, for example, as 544644 + 180625 = 738^2 + 425^2 .

It is a cyclic number.

It is not a de Polignac number, because 725269 - 2¹¹ = 723221 is a prime.

It is a super-2 number, since 2×725269² = 1052030244722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 725269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3642 + ... + 3835.

It is an arithmetic number, because the mean of its divisors is an integer number (183211).

2⁷²⁵²⁶⁹ is an apocalyptic number.

It is an amenable number.

725269 is a deficient number, since it is larger than the sum of its proper divisors (7575).

725269 is an equidigital number, since it uses as much as digits as its factorization.

725269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7574.

The product of its digits is 7560, while the sum is 31.

The square root of 725269 is about 851.6272658857. The cubic root of 725269 is about 89.8461982219.

The spelling of 725269 in words is "seven hundred twenty-five thousand, two hundred sixty-nine".