99952165 has 4 divisors (see below), whose sum is σ = 119942604. Its totient is φ = 79961728.

The previous prime is 99952159. The next prime is 99952189. The reversal of 99952165 is 56125999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56125999 = 127 ⋅441937.

It can be written as a sum of positive squares in 2 ways, for example, as 18122049 + 81830116 = 4257^2 + 9046^2 .

It is a cyclic number.

It is not a de Polignac number, because 99952165 - 2⁷ = 99952037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9995212 + ... + 9995221.

It is an arithmetic number, because the mean of its divisors is an integer number (29985651).

Almost surely, 2^99952165 is an apocalyptic number.

It is an amenable number.

99952165 is a deficient number, since it is larger than the sum of its proper divisors (19990439).

99952165 is a wasteful number, since it uses less digits than its factorization.

99952165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19990438.

The product of its digits is 218700, while the sum is 46.

The square root of 99952165 is about 9997.6079639082. The cubic root of 99952165 is about 464.0848614233.

The spelling of 99952165 in words is "ninety-nine million, nine hundred fifty-two thousand, one hundred sixty-five".