725366709 has 24 divisors (see below), whose sum is σ = 1111855680. Its totient is φ = 454705152.

The previous prime is 725366669. The next prime is 725366713. The reversal of 725366709 is 907663527.

It is not a de Polignac number, because 725366709 - 2²⁴ = 708589493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725366729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17484 + ... + 41909.

It is an arithmetic number, because the mean of its divisors is an integer number (46327320).

Almost surely, 2^725366709 is an apocalyptic number.

It is an amenable number.

725366709 is a deficient number, since it is larger than the sum of its proper divisors (386488971).

725366709 is a wasteful number, since it uses less digits than its factorization.

725366709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59481 (or 59478 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 45.

The square root of 725366709 is about 26932.6327899817. The cubic root of 725366709 is about 898.5023276538.

The spelling of 725366709 in words is "seven hundred twenty-five million, three hundred sixty-six thousand, seven hundred nine".