165250250 has 32 divisors (see below), whose sum is σ = 337476672. Its totient is φ = 60090000.

The previous prime is 165250249. The next prime is 165250271. The reversal of 165250250 is 52052561.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27296 + ... + 32795.

It is an arithmetic number, because the mean of its divisors is an integer number (10546146).

Almost surely, 2^165250250 is an apocalyptic number.

165250250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165250250 is an abundant number, since it is smaller than the sum of its proper divisors (172226422).

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

165250250 is a wasteful number, since it uses less digits than its factorization.

165250250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60119 (or 60109 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 165250250 is about 12854.9698560518. The cubic root of 165250250 is about 548.7578026194.

The spelling of 165250250 in words is "one hundred sixty-five million, two hundred fifty thousand, two hundred fifty".