65155233 has 24 divisors (see below), whose sum is σ = 102841984. Its totient is φ = 36447840.

The previous prime is 65155231. The next prime is 65155247. The reversal of 65155233 is 33255156.

It is not a de Polignac number, because 65155233 - 2¹ = 65155231 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65155233.

It is not an unprimeable number, because it can be changed into a prime (65155231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2185 + ... + 11622.

Almost surely, 2^65155233 is an apocalyptic number.

It is an amenable number.

65155233 is a deficient number, since it is larger than the sum of its proper divisors (37686751).

65155233 is a wasteful number, since it uses less digits than its factorization.

65155233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13845 (or 13834 counting only the distinct ones).

The product of its digits is 13500, while the sum is 30.

The square root of 65155233 is about 8071.8791492440. The cubic root of 65155233 is about 402.3923979694.

The spelling of 65155233 in words is "sixty-five million, one hundred fifty-five thousand, two hundred thirty-three".