725355 has 28 divisors (see below), whose sum is σ = 1311600. Its totient is φ = 384912.

The previous prime is 725341. The next prime is 725357. The reversal of 725355 is 553527.

725355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 725355 - 2⁵ = 725323 is a prime.

It is a super-2 number, since 2×725355² = 1052279752050, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 725355.

It is not an unprimeable number, because it can be changed into a prime (725357) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 3546 + ... + 3744.

2⁷²⁵³⁵⁵ is an apocalyptic number.

725355 is a deficient number, since it is larger than the sum of its proper divisors (586245).

725355 is an equidigital number, since it uses as much as digits as its factorization.

725355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 207 counting only the distinct ones).

The product of its digits is 5250, while the sum is 27.

The square root of 725355 is about 851.6777559617. The cubic root of 725355 is about 89.8497493032.

The spelling of 725355 in words is "seven hundred twenty-five thousand, three hundred fifty-five".