165250755 has 24 divisors (see below), whose sum is σ = 286734240. Its totient is φ = 88041600.

The previous prime is 165250703. The next prime is 165250807. The reversal of 165250755 is 557052561.

It is a happy number.

165250755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (165250703) and next prime (165250807).

It is not a de Polignac number, because 165250755 - 2⁷ = 165250627 is a prime.

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, 80026 + ... + 82064.

It is an arithmetic number, because the mean of its divisors is an integer number (11947260).

Almost surely, 2^165250755 is an apocalyptic number.

165250755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165250755 is a deficient number, since it is larger than the sum of its proper divisors (121483485).

165250755 is a wasteful number, since it uses less digits than its factorization.

165250755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3851 (or 3848 counting only the distinct ones).

The product of its (nonzero) digits is 52500, while the sum is 36.

The square root of 165250755 is about 12854.9894982454. The cubic root of 165250755 is about 548.7583616149.

The spelling of 165250755 in words is "one hundred sixty-five million, two hundred fifty thousand, seven hundred fifty-five".