2155482756 has 108 divisors (see below), whose sum is σ = 6353867520. Its totient is φ = 614325600.

The previous prime is 2155482727. The next prime is 2155482757. The reversal of 2155482756 is 6572845512.

2155482756 is a `hidden beast` number, since 21 + 554 + 8 + 2 + 75 + 6 = 666.

It is a super-2 number, since 2×2155482756² = 9292211822826711072, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2155482757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 843681 + ... + 846231.

Almost surely, 2^2155482756 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 2155482756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3176933760).

2155482756 is an abundant number, since it is smaller than the sum of its proper divisors (4198384764).

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

2155482756 is a wasteful number, since it uses less digits than its factorization.

2155482756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054 (or 3042 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 2155482756 is about 46427.1769118046. The cubic root of 2155482756 is about 1291.7590640769.

The spelling of 2155482756 in words is "two billion, one hundred fifty-five million, four hundred eighty-two thousand, seven hundred fifty-six".