725572 has 12 divisors (see below), whose sum is σ = 1336720. Its totient is φ = 343656.

The previous prime is 725537. The next prime is 725579. The reversal of 725572 is 275527.

It is a self number, because there is not a number n which added to its sum of digits gives 725572.

It is not an unprimeable number, because it can be changed into a prime (725579) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4698 + ... + 4849.

2⁷²⁵⁵⁷² is an apocalyptic number.

It is an amenable number.

725572 is a deficient number, since it is larger than the sum of its proper divisors (611148).

725572 is a wasteful number, since it uses less digits than its factorization.

725572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9570 (or 9568 counting only the distinct ones).

The product of its digits is 4900, while the sum is 28.

The square root of 725572 is about 851.8051420366. The cubic root of 725572 is about 89.8587083424.

The spelling of 725572 in words is "seven hundred twenty-five thousand, five hundred seventy-two".