2155882256 has 40 divisors (see below), whose sum is σ = 4679920704. Its totient is φ = 953458560.

The previous prime is 2155882241. The next prime is 2155882283. The reversal of 2155882256 is 6522885512.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159020 + ... + 172043.

Almost surely, 2^2155882256 is an apocalyptic number.

It is an amenable number.

2155882256 is an abundant number, since it is smaller than the sum of its proper divisors (2524038448).

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

2155882256 is a wasteful number, since it uses less digits than its factorization.

2155882256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331119 (or 331113 counting only the distinct ones).

The product of its digits is 384000, while the sum is 44.

The square root of 2155882256 is about 46431.4791493874. The cubic root of 2155882256 is about 1291.8388645865.

The spelling of 2155882256 in words is "two billion, one hundred fifty-five million, eight hundred eighty-two thousand, two hundred fifty-six".