165350025 has 48 divisors (see below), whose sum is σ = 314265600. Its totient is φ = 85135680.

The previous prime is 165350023. The next prime is 165350039. The reversal of 165350025 is 520053561.

165350025 is a `hidden beast` number, since 1 + 653 + 5 + 0 + 0 + 2 + 5 = 666.

It is not a de Polignac number, because 165350025 - 2¹ = 165350023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (165350023) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 15352 + ... + 23798.

It is an arithmetic number, because the mean of its divisors is an integer number (6547200).

Almost surely, 2^165350025 is an apocalyptic number.

165350025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165350025 is a deficient number, since it is larger than the sum of its proper divisors (148915575).

165350025 is a wasteful number, since it uses less digits than its factorization.

165350025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8495 (or 8484 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 165350025 is about 12858.8500652275. The cubic root of 165350025 is about 548.8682236203.

The spelling of 165350025 in words is "one hundred sixty-five million, three hundred fifty thousand, twenty-five".