165532250 has 96 divisors (see below), whose sum is σ = 351331344. Its totient is φ = 58032000.

The previous prime is 165532207. The next prime is 165532253. The reversal of 165532250 is 52235561.

It is a happy number.

165532250 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1615441 + 163916809 = 1271^2 + 12803^2 .

It is not an unprimeable number, because it can be changed into a prime (165532253) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3123224 + ... + 3123276.

Almost surely, 2^165532250 is an apocalyptic number.

165532250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165532250 is an abundant number, since it is smaller than the sum of its proper divisors (185799094).

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

165532250 is a wasteful number, since it uses less digits than its factorization.

165532250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 165532250 is about 12865.9337010572. The cubic root of 165532250 is about 549.0697774511.

The spelling of 165532250 in words is "one hundred sixty-five million, five hundred thirty-two thousand, two hundred fifty".