165425211 has 24 divisors (see below), whose sum is σ = 277165824. Its totient is φ = 93115440.

The previous prime is 165425209. The next prime is 165425213. The reversal of 165425211 is 112524561.

165425211 is a `hidden beast` number, since 1 + 654 + 2 + 5 + 2 + 1 + 1 = 666.

165425211 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 (165425209) and next prime (165425213).

It is not a de Polignac number, because 165425211 - 2¹ = 165425209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165425213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15375 + ... + 23816.

It is an arithmetic number, because the mean of its divisors is an integer number (11548576).

Almost surely, 2^165425211 is an apocalyptic number.

165425211 is a deficient number, since it is larger than the sum of its proper divisors (111740613).

165425211 is a wasteful number, since it uses less digits than its factorization.

165425211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39271 (or 39268 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 165425211 is about 12861.7732447746. The cubic root of 165425211 is about 548.9514026279.

Adding to 165425211 its reverse (112524561), we get a palindrome (277949772).

The spelling of 165425211 in words is "one hundred sixty-five million, four hundred twenty-five thousand, two hundred eleven".