2255699968 has 90 divisors (see below), whose sum is σ = 4710387318. Its totient is φ = 1079377920.

The previous prime is 2255699899. The next prime is 2255700001. The reversal of 2255699968 is 8699965522.

It can be written as a sum of positive squares in 3 ways, for example, as 589824 + 2255110144 = 768^2 + 47488^2 .

It is a Harshad number since it is a multiple of its sum of digits (61).

Its product of digits (20995200) is a multiple of the sum of its prime divisors (100).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36978658 + ... + 36978718.

Almost surely, 2^2255699968 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 2255699968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2355193659).

2255699968 is an abundant number, since it is smaller than the sum of its proper divisors (2454687350).

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

2255699968 is an frugal number, since it uses more digits than its factorization.

2255699968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 100 counting only the distinct ones).

The product of its digits is 20995200, while the sum is 61.

The square root of 2255699968 is about 47494.2098365685. The cubic root of 2255699968 is about 1311.4762930634.

The spelling of 2255699968 in words is "two billion, two hundred fifty-five million, six hundred ninety-nine thousand, nine hundred sixty-eight".