613256512 has 28 divisors (see below), whose sum is σ = 1327562496. Its totient is φ = 278752640.

The previous prime is 613256491. The next prime is 613256543. The reversal of 613256512 is 215652316.

It is a super-2 number, since 2×613256512² = 752167099020812288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434848 + ... + 436255.

Almost surely, 2^613256512 is an apocalyptic number.

It is an amenable number.

613256512 is an abundant number, since it is smaller than the sum of its proper divisors (714305984).

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

613256512 is a wasteful number, since it uses less digits than its factorization.

613256512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871126 (or 871116 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 613256512 is about 24764.0164755235. The cubic root of 613256512 is about 849.5991244643.

The spelling of 613256512 in words is "six hundred thirteen million, two hundred fifty-six thousand, five hundred twelve".