613500256 has 24 divisors (see below), whose sum is σ = 1240475040. Its totient is φ = 298459008.

The previous prime is 613500247. The next prime is 613500263. The reversal of 613500256 is 652005316.

It is a super-2 number, since 2×613500256² = 752765128224131072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257896 + ... + 260263.

It is an arithmetic number, because the mean of its divisors is an integer number (51686460).

Almost surely, 2^613500256 is an apocalyptic number.

It is an amenable number.

613500256 is an abundant number, since it is smaller than the sum of its proper divisors (626974784).

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

613500256 is a wasteful number, since it uses less digits than its factorization.

613500256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518206 (or 518198 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 613500256 is about 24768.9373207653. The cubic root of 613500256 is about 849.7116696800.

The spelling of 613500256 in words is "six hundred thirteen million, five hundred thousand, two hundred fifty-six".