2125553772 has 18 divisors (see below), whose sum is σ = 4959998148. Its totient is φ = 708464688.

The previous prime is 2125553747. The next prime is 2125553783. The reversal of 2125553772 is 2773555212.

2125553772 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2125553772.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 153054 + ... + 166362.

Almost surely, 2^2125553772 is an apocalyptic number.

It is an amenable number.

2125553772 is an abundant number, since it is smaller than the sum of its proper divisors (2834444376).

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

2125553772 is an frugal number, since it uses more digits than its factorization.

2125553772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26625 (or 13314 counting only the distinct ones).

The product of its digits is 147000, while the sum is 39.

The square root of 2125553772 is about 46103.7283958684. The cubic root of 2125553772 is about 1285.7524643548.

The spelling of 2125553772 in words is "two billion, one hundred twenty-five million, five hundred fifty-three thousand, seven hundred seventy-two".