2155729288 has 32 divisors (see below), whose sum is σ = 4113423360. Its totient is φ = 1058904000.

The previous prime is 2155729273. The next prime is 2155729291. The reversal of 2155729288 is 8829275512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200038 + ... + 210538.

It is an arithmetic number, because the mean of its divisors is an integer number (128544480).

Almost surely, 2^2155729288 is an apocalyptic number.

It is an amenable number.

2155729288 is a deficient number, since it is larger than the sum of its proper divisors (1957694072).

2155729288 is a wasteful number, since it uses less digits than its factorization.

2155729288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10957 (or 10953 counting only the distinct ones).

The product of its digits is 806400, while the sum is 49.

The square root of 2155729288 is about 46429.8318756379. The cubic root of 2155729288 is about 1291.8083102460.

The spelling of 2155729288 in words is "two billion, one hundred fifty-five million, seven hundred twenty-nine thousand, two hundred eighty-eight".