616540256 has 24 divisors (see below), whose sum is σ = 1221554880. Its totient is φ = 306304128.

The previous prime is 616540217. The next prime is 616540271. The reversal of 616540256 is 652045616.

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, 56336 + ... + 66383.

It is an arithmetic number, because the mean of its divisors is an integer number (50898120).

Almost surely, 2^616540256 is an apocalyptic number.

It is an amenable number.

616540256 is a deficient number, since it is larger than the sum of its proper divisors (605014624).

616540256 is a wasteful number, since it uses less digits than its factorization.

616540256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122886 (or 122878 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 616540256 is about 24830.2286739369. The cubic root of 616540256 is about 851.1128473482.

The spelling of 616540256 in words is "six hundred sixteen million, five hundred forty thousand, two hundred fifty-six".