725745 has 8 divisors (see below), whose sum is σ = 1161216. Its totient is φ = 387056.

The previous prime is 725737. The next prime is 725749. The reversal of 725745 is 547527.

725745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 725745 - 2³ = 725737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725749) 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, 24177 + ... + 24206.

It is an arithmetic number, because the mean of its divisors is an integer number (145152).

2⁷²⁵⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

725745 is a deficient number, since it is larger than the sum of its proper divisors (435471).

725745 is a wasteful number, since it uses less digits than its factorization.

725745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48391.

The product of its digits is 9800, while the sum is 30.

The square root of 725745 is about 851.9066850307. The cubic root of 725745 is about 89.8658495226.

It can be divided in two parts, 7 and 25745, that added together give a palindrome (25752).

The spelling of 725745 in words is "seven hundred twenty-five thousand, seven hundred forty-five".