613255536 has 50 divisors (see below), whose sum is σ = 1774943192. Its totient is φ = 204418080.

The previous prime is 613255519. The next prime is 613255561. The reversal of 613255536 is 635552316.

613255536 is a `hidden beast` number, since 613 + 2 + 5 + 5 + 5 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 613255536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 235300 + ... + 237891.

Almost surely, 2^613255536 is an apocalyptic number.

It is an amenable number.

613255536 is an abundant number, since it is smaller than the sum of its proper divisors (1161687656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

613255536 is a wasteful number, since it uses less digits than its factorization.

613255536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473211 (or 473196 counting only the distinct ones).

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

The square root of 613255536 is about 24763.9967695039. The cubic root of 613255536 is about 849.5986737507.

The spelling of 613255536 in words is "six hundred thirteen million, two hundred fifty-five thousand, five hundred thirty-six".