670560725 has 6 divisors (see below), whose sum is σ = 831495330. Its totient is φ = 536448560.

The previous prime is 670560713. The next prime is 670560763. The reversal of 670560725 is 527065076.

It can be written as a sum of positive squares in 3 ways, for example, as 210801361 + 459759364 = 14519^2 + 21442^2 .

It is not a de Polignac number, because 670560725 - 2⁶ = 670560661 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13411190 + ... + 13411239.

It is an arithmetic number, because the mean of its divisors is an integer number (138582555).

Almost surely, 2^670560725 is an apocalyptic number.

It is an amenable number.

670560725 is a deficient number, since it is larger than the sum of its proper divisors (160934605).

670560725 is a wasteful number, since it uses less digits than its factorization.

670560725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26822439 (or 26822434 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 670560725 is about 25895.1872941672. The cubic root of 670560725 is about 875.2780504095.

The spelling of 670560725 in words is "six hundred seventy million, five hundred sixty thousand, seven hundred twenty-five".