2256756222 has 128 divisors (see below), whose sum is σ = 5592996864. Its totient is φ = 592478208.

The previous prime is 2256756193. The next prime is 2256756233. The reversal of 2256756222 is 2226576522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6696438 + ... + 6696774.

It is an arithmetic number, because the mean of its divisors is an integer number (43695288).

Almost surely, 2^2256756222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2256756222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2796498432).

2256756222 is an abundant number, since it is smaller than the sum of its proper divisors (3336240642).

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

2256756222 is a wasteful number, since it uses less digits than its factorization.

2256756222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562.

The product of its digits is 201600, while the sum is 39.

The square root of 2256756222 is about 47505.3283537752. The cubic root of 2256756222 is about 1311.6809650702.

The spelling of 2256756222 in words is "two billion, two hundred fifty-six million, seven hundred fifty-six thousand, two hundred twenty-two".