725707571 has 4 divisors (see below), whose sum is σ = 750732000. Its totient is φ = 700683144.

The previous prime is 725707561. The next prime is 725707573. The reversal of 725707571 is 175707527.

725707571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 725707571 - 2²² = 721513267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725707573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12512171 + ... + 12512228.

It is an arithmetic number, because the mean of its divisors is an integer number (187683000).

Almost surely, 2^725707571 is an apocalyptic number.

725707571 is a deficient number, since it is larger than the sum of its proper divisors (25024429).

725707571 is a wasteful number, since it uses less digits than its factorization.

725707571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25024428.

The product of its (nonzero) digits is 120050, while the sum is 41.

The square root of 725707571 is about 26938.9600950000. The cubic root of 725707571 is about 898.6430460592.

The spelling of 725707571 in words is "seven hundred twenty-five million, seven hundred seven thousand, five hundred seventy-one".