724525 has 12 divisors (see below), whose sum is σ = 913012. Its totient is φ = 570240.

The previous prime is 724519. The next prime is 724531. The reversal of 724525 is 525427.

724525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (724519) and next prime (724531).

It can be written as a sum of positive squares in 6 ways, for example, as 324 + 724201 = 18^2 + 851^2 .

It is not a de Polignac number, because 724525 - 2³ = 724517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 724525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1627 + ... + 2023.

2⁷²⁴⁵²⁵ is an apocalyptic number.

It is an amenable number.

724525 is a deficient number, since it is larger than the sum of its proper divisors (188487).

724525 is a wasteful number, since it uses less digits than its factorization.

724525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480 (or 475 counting only the distinct ones).

The product of its digits is 2800, while the sum is 25.

The square root of 724525 is about 851.1903429903. The cubic root of 724525 is about 89.8154655136.

The spelling of 724525 in words is "seven hundred twenty-four thousand, five hundred twenty-five".