2164332625 has 32 divisors (see below), whose sum is σ = 3324432384. Its totient is φ = 1369944000.

The previous prime is 2164332607. The next prime is 2164332629. The reversal of 2164332625 is 5262334612.

It is not a de Polignac number, because 2164332625 - 2⁹ = 2164332113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2164332629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83761 + ... + 106510.

It is an arithmetic number, because the mean of its divisors is an integer number (103888512).

Almost surely, 2^2164332625 is an apocalyptic number.

2164332625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2164332625 is a deficient number, since it is larger than the sum of its proper divisors (1160099759).

2164332625 is a wasteful number, since it uses less digits than its factorization.

2164332625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190306 (or 190296 counting only the distinct ones).

The product of its digits is 51840, while the sum is 34.

The square root of 2164332625 is about 46522.3884275087. The cubic root of 2164332625 is about 1293.5245291537.

The spelling of 2164332625 in words is "two billion, one hundred sixty-four million, three hundred thirty-two thousand, six hundred twenty-five".