725225279 has 4 divisors (see below), whose sum is σ = 737114280. Its totient is φ = 713336280.

The previous prime is 725225273. The next prime is 725225297. The reversal of 725225279 is 972522527.

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 725225279 - 2²⁰ = 724176703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725225273) 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, 5944409 + ... + 5944530.

It is an arithmetic number, because the mean of its divisors is an integer number (184278570).

Almost surely, 2^725225279 is an apocalyptic number.

725225279 is a deficient number, since it is larger than the sum of its proper divisors (11889001).

725225279 is a wasteful number, since it uses less digits than its factorization.

725225279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11889000.

The product of its digits is 176400, while the sum is 41.

The square root of 725225279 is about 26930.0070367611. The cubic root of 725225279 is about 898.4439280230.

The spelling of 725225279 in words is "seven hundred twenty-five million, two hundred twenty-five thousand, two hundred seventy-nine".