725415 has 16 divisors (see below), whose sum is σ = 1172448. Its totient is φ = 382976.

The previous prime is 725399. The next prime is 725423. The reversal of 725415 is 514527.

725415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 725415 - 2⁴ = 725399 is a prime.

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 725415.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1879 + ... + 2231.

It is an arithmetic number, because the mean of its divisors is an integer number (73278).

2⁷²⁵⁴¹⁵ is an apocalyptic number.

725415 is a deficient number, since it is larger than the sum of its proper divisors (447033).

725415 is a wasteful number, since it uses less digits than its factorization.

725415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498.

The product of its digits is 1400, while the sum is 24.

The square root of 725415 is about 851.7129798236. The cubic root of 725415 is about 89.8522266356.

The spelling of 725415 in words is "seven hundred twenty-five thousand, four hundred fifteen".