2164657325 has 12 divisors (see below), whose sum is σ = 2697669600. Its totient is φ = 1723019760.

The previous prime is 2164657283. The next prime is 2164657349. The reversal of 2164657325 is 5237564612.

It is not a de Polignac number, because 2164657325 - 2¹² = 2164653229 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 212579 + ... + 222528.

It is an arithmetic number, because the mean of its divisors is an integer number (224805800).

Almost surely, 2^2164657325 is an apocalyptic number.

2164657325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2164657325 is a deficient number, since it is larger than the sum of its proper divisors (533012275).

2164657325 is a wasteful number, since it uses less digits than its factorization.

2164657325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435316 (or 435311 counting only the distinct ones).

The product of its digits is 302400, while the sum is 41.

The square root of 2164657325 is about 46525.8780142836. The cubic root of 2164657325 is about 1293.5892121277.

The spelling of 2164657325 in words is "two billion, one hundred sixty-four million, six hundred fifty-seven thousand, three hundred twenty-five".