725587705 has 8 divisors (see below), whose sum is σ = 898792704. Its totient is φ = 561745200.

The previous prime is 725587697. The next prime is 725587717. The reversal of 725587705 is 507785527.

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

It is not a de Polignac number, because 725587705 - 2³ = 725587697 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2340451 + ... + 2340760.

It is an arithmetic number, because the mean of its divisors is an integer number (112349088).

Almost surely, 2^725587705 is an apocalyptic number.

It is an amenable number.

725587705 is a deficient number, since it is larger than the sum of its proper divisors (173204999).

725587705 is a wasteful number, since it uses less digits than its factorization.

725587705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4681247.

The product of its (nonzero) digits is 686000, while the sum is 46.

The square root of 725587705 is about 26936.7352327635. The cubic root of 725587705 is about 898.5935666808.

The spelling of 725587705 in words is "seven hundred twenty-five million, five hundred eighty-seven thousand, seven hundred five".