2154665325 has 24 divisors (see below), whose sum is σ = 3563709408. Its totient is φ = 1148726080.

The previous prime is 2154665311. The next prime is 2154665389. The reversal of 2154665325 is 5235664512.

It is not a de Polignac number, because 2154665325 - 2⁸ = 2154665069 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 397282 + ... + 402668.

It is an arithmetic number, because the mean of its divisors is an integer number (148487892).

Almost surely, 2^2154665325 is an apocalyptic number.

2154665325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2154665325 is a deficient number, since it is larger than the sum of its proper divisors (1409044083).

2154665325 is a wasteful number, since it uses less digits than its factorization.

2154665325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10733 (or 10728 counting only the distinct ones).

The product of its digits is 216000, while the sum is 39.

The square root of 2154665325 is about 46418.3727095210. The cubic root of 2154665325 is about 1291.5957507141.

The spelling of 2154665325 in words is "two billion, one hundred fifty-four million, six hundred sixty-five thousand, three hundred twenty-five".