613504625725 has 12 divisors (see below), whose sum is σ = 768277875060. Its totient is φ = 485944256000.

The previous prime is 613504625711. The next prime is 613504625743. The reversal of 613504625725 is 527526405316.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 8161496281 + 605343129444 = 90341^2 + 778038^2 .

It is not a de Polignac number, because 613504625725 - 2¹⁵ = 613504592957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121483540 + ... + 121488589.

It is an arithmetic number, because the mean of its divisors is an integer number (64023156255).

Almost surely, 2^613504625725 is an apocalyptic number.

It is an amenable number.

613504625725 is a deficient number, since it is larger than the sum of its proper divisors (154773249335).

613504625725 is a wasteful number, since it uses less digits than its factorization.

613504625725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242972240 (or 242972235 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 46.

The spelling of 613504625725 in words is "six hundred thirteen billion, five hundred four million, six hundred twenty-five thousand, seven hundred twenty-five".