165525472 has 24 divisors (see below), whose sum is σ = 372432816. Its totient is φ = 70939392.

The previous prime is 165525467. The next prime is 165525589. The reversal of 165525472 is 274525561.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 369253 + ... + 369700.

It is an arithmetic number, because the mean of its divisors is an integer number (15518034).

Almost surely, 2^165525472 is an apocalyptic number.

It is an amenable number.

165525472 is an abundant number, since it is smaller than the sum of its proper divisors (206907344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165525472 is an equidigital number, since it uses as much as digits as its factorization.

165525472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738970 (or 738962 counting only the distinct ones).

The product of its digits is 84000, while the sum is 37.

The square root of 165525472 is about 12865.6702895729. The cubic root of 165525472 is about 549.0622831496.

The spelling of 165525472 in words is "one hundred sixty-five million, five hundred twenty-five thousand, four hundred seventy-two".