613556325 has 18 divisors (see below), whose sum is σ = 1098947954. Its totient is φ = 327229920.

The previous prime is 613556323. The next prime is 613556327. The reversal of 613556325 is 523655316.

613556325 is a `hidden beast` number, since 6 + 13 + 5 + 5 + 632 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (613556323) and next prime (613556327).

It can be written as a sum of positive squares in 3 ways, for example, as 23357889 + 590198436 = 4833^2 + 24294^2 .

It is not a de Polignac number, because 613556325 - 2¹ = 613556323 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 613556325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613556323) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1363234 + ... + 1363683.

Almost surely, 2^613556325 is an apocalyptic number.

It is an amenable number.

613556325 is a deficient number, since it is larger than the sum of its proper divisors (485391629).

613556325 is a wasteful number, since it uses less digits than its factorization.

613556325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726933 (or 2726925 counting only the distinct ones).

The product of its digits is 81000, while the sum is 36.

The square root of 613556325 is about 24770.0691359552. The cubic root of 613556325 is about 849.7375545006.

The spelling of 613556325 in words is "six hundred thirteen million, five hundred fifty-six thousand, three hundred twenty-five".