165375825 has 12 divisors (see below), whose sum is σ = 273421488. Its totient is φ = 88200400.

The previous prime is 165375817. The next prime is 165375857. The reversal of 165375825 is 528573561.

It is not a de Polignac number, because 165375825 - 2³ = 165375817 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1102431 + ... + 1102580.

It is an arithmetic number, because the mean of its divisors is an integer number (22785124).

Almost surely, 2^165375825 is an apocalyptic number.

165375825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165375825 is a deficient number, since it is larger than the sum of its proper divisors (108045663).

165375825 is a wasteful number, since it uses less digits than its factorization.

165375825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205024 (or 2205019 counting only the distinct ones).

The product of its digits is 252000, while the sum is 42.

The square root of 165375825 is about 12859.8532262231. The cubic root of 165375825 is about 548.8967692539.

The spelling of 165375825 in words is "one hundred sixty-five million, three hundred seventy-five thousand, eight hundred twenty-five".