725542 has 8 divisors (see below), whose sum is σ = 1093032. Its totient is φ = 361200.

The previous prime is 725537. The next prime is 725579. The reversal of 725542 is 245527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×725542² = 1052822387528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84 + ... + 1207.

It is an arithmetic number, because the mean of its divisors is an integer number (136629).

2⁷²⁵⁵⁴² is an apocalyptic number.

725542 is a deficient number, since it is larger than the sum of its proper divisors (367490).

725542 is a wasteful number, since it uses less digits than its factorization.

725542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574.

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

The square root of 725542 is about 851.7875321933. The cubic root of 725542 is about 89.8574698720.

The spelling of 725542 in words is "seven hundred twenty-five thousand, five hundred forty-two".