725534 has 16 divisors (see below), whose sum is σ = 1168080. Its totient is φ = 336960.

The previous prime is 725531. The next prime is 725537. The reversal of 725534 is 435527.

It is an interprime number because it is at equal distance from previous prime (725531) and next prime (725537).

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 725534.

It is not an unprimeable number, because it can be changed into a prime (725531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2162 + ... + 2474.

It is an arithmetic number, because the mean of its divisors is an integer number (73005).

2⁷²⁵⁵³⁴ is an apocalyptic number.

725534 is a deficient number, since it is larger than the sum of its proper divisors (442546).

725534 is a wasteful number, since it uses less digits than its factorization.

725534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395.

The product of its digits is 4200, while the sum is 26.

The square root of 725534 is about 851.7828361736. The cubic root of 725534 is about 89.8571396074.

The spelling of 725534 in words is "seven hundred twenty-five thousand, five hundred thirty-four".