256052616 has 64 divisors (see below), whose sum is σ = 669081600. Its totient is φ = 81576768.

The previous prime is 256052603. The next prime is 256052639. The reversal of 256052616 is 616250652.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45865 + ... + 51143.

It is an arithmetic number, because the mean of its divisors is an integer number (10454400).

Almost surely, 2^256052616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256052616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334540800).

256052616 is an abundant number, since it is smaller than the sum of its proper divisors (413028984).

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

256052616 is a wasteful number, since it uses less digits than its factorization.

256052616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5378 (or 5374 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 256052616 is about 16001.6441655225. The cubic root of 256052616 is about 635.0039192103.

The spelling of 256052616 in words is "two hundred fifty-six million, fifty-two thousand, six hundred sixteen".