2165465325 has 24 divisors (see below), whose sum is σ = 3588832800. Its totient is φ = 1152141760.

The previous prime is 2165465317. The next prime is 2165465369. The reversal of 2165465325 is 5235645612.

It is not a de Polignac number, because 2165465325 - 2³ = 2165465317 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, 3030 + ... + 65879.

It is an arithmetic number, because the mean of its divisors is an integer number (149534700).

Almost surely, 2^2165465325 is an apocalyptic number.

2165465325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2165465325 is a deficient number, since it is larger than the sum of its proper divisors (1423367475).

2165465325 is a wasteful number, since it uses less digits than its factorization.

2165465325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69341 (or 69336 counting only the distinct ones).

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

The square root of 2165465325 is about 46534.5605437507. The cubic root of 2165465325 is about 1293.7501444608.

The spelling of 2165465325 in words is "two billion, one hundred sixty-five million, four hundred sixty-five thousand, three hundred twenty-five".