2153505612 has 24 divisors (see below), whose sum is σ = 5030387712. Its totient is φ = 717043600.

The previous prime is 2153505589. The next prime is 2153505623. The reversal of 2153505612 is 2165053512.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2153505612.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87564 + ... + 109427.

It is an arithmetic number, because the mean of its divisors is an integer number (209599488).

Almost surely, 2^2153505612 is an apocalyptic number.

It is an amenable number.

2153505612 is an abundant number, since it is smaller than the sum of its proper divisors (2876882100).

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

2153505612 is a wasteful number, since it uses less digits than its factorization.

2153505612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197909 (or 197907 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 2153505612 is about 46405.8790672044. The cubic root of 2153505612 is about 1291.3639824386.

The spelling of 2153505612 in words is "two billion, one hundred fifty-three million, five hundred five thousand, six hundred twelve".