709275574225 has 27 divisors (see below), whose sum is σ = 883809573843. Its totient is φ = 564654723840.

The previous prime is 709275574199. The next prime is 709275574289. The reversal of 709275574225 is 522475572907.

It is a happy number.

The square root of 709275574225 is 842185.

It is a perfect power (a square), and thus also a powerful number.

709275574225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 13 ways, for example, as 704916405649 + 4359168576 = 839593^2 + 66024^2 .

It is not a de Polignac number, because 709275574225 - 2⁵ = 709275574193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1638049609 + ... + 1638050041.

Almost surely, 2^709275574225 is an apocalyptic number.

709275574225 is the 842185-th square number.

709275574225 is the 421093-rd centered octagonal number.

It is an amenable number.

709275574225 is a deficient number, since it is larger than the sum of its proper divisors (174533999618).

709275574225 is an frugal number, since it uses more digits than its factorization.

709275574225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654 (or 827 counting only the distinct ones).

The product of its (nonzero) digits is 12348000, while the sum is 55.

The spelling of 709275574225 in words is "seven hundred nine billion, two hundred seventy-five million, five hundred seventy-four thousand, two hundred twenty-five".