66255233 has 4 divisors (see below), whose sum is σ = 72278448. Its totient is φ = 60232020.

The previous prime is 66255199. The next prime is 66255253. The reversal of 66255233 is 33255266.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66255233 - 2¹² = 66251137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66255233.

It is not an unprimeable number, because it can be changed into a prime (66255253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3011591 + ... + 3011612.

It is an arithmetic number, because the mean of its divisors is an integer number (18069612).

Almost surely, 2^66255233 is an apocalyptic number.

It is an amenable number.

66255233 is a deficient number, since it is larger than the sum of its proper divisors (6023215).

66255233 is a wasteful number, since it uses less digits than its factorization.

66255233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6023214.

The product of its digits is 32400, while the sum is 32.

The square root of 66255233 is about 8139.7317523368. The cubic root of 66255233 is about 404.6442702728.

The spelling of 66255233 in words is "sixty-six million, two hundred fifty-five thousand, two hundred thirty-three".