165008425 has 12 divisors (see below), whose sum is σ = 204774220. Its totient is φ = 131901120.

The previous prime is 165008423. The next prime is 165008449. The reversal of 165008425 is 524800561.

165008425 is digitally balanced in base 2, 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 6 ways, for example, as 47155689 + 117852736 = 6867^2 + 10856^2 .

It is not a de Polignac number, because 165008425 - 2¹ = 165008423 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (165008423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49099 + ... + 52351.

Almost surely, 2^165008425 is an apocalyptic number.

It is an amenable number.

165008425 is a deficient number, since it is larger than the sum of its proper divisors (39765795).

165008425 is a wasteful number, since it uses less digits than its factorization.

165008425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5292 (or 5287 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 165008425 is about 12845.5605171592. The cubic root of 165008425 is about 548.4899903359.

Adding to 165008425 its reverse (524800561), we get a palindrome (689808986).

The spelling of 165008425 in words is "one hundred sixty-five million, eight thousand, four hundred twenty-five".