2115553884 has 48 divisors (see below), whose sum is σ = 5083911168. Its totient is φ = 684203328.

The previous prime is 2115553849. The next prime is 2115553897. The reversal of 2115553884 is 4883555112.

2115553884 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2115553884³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156457 + ... + 169439.

It is an arithmetic number, because the mean of its divisors is an integer number (105914816).

Almost surely, 2^2115553884 is an apocalyptic number.

It is an amenable number.

2115553884 is an abundant number, since it is smaller than the sum of its proper divisors (2968357284).

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

2115553884 is a wasteful number, since it uses less digits than its factorization.

2115553884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13394 (or 13392 counting only the distinct ones).

The product of its digits is 192000, while the sum is 42.

The square root of 2115553884 is about 45995.1506574334. The cubic root of 2115553884 is about 1283.7329754991.

The spelling of 2115553884 in words is "two billion, one hundred fifteen million, five hundred fifty-three thousand, eight hundred eighty-four".