665125333 has 4 divisors (see below), whose sum is σ = 680593408. Its totient is φ = 649657260.

The previous prime is 665125297. The next prime is 665125337. The reversal of 665125333 is 333521566.

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 665125333 - 2¹⁷ = 664994261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665125337) 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, 7733973 + ... + 7734058.

It is an arithmetic number, because the mean of its divisors is an integer number (170148352).

Almost surely, 2^665125333 is an apocalyptic number.

It is an amenable number.

665125333 is a deficient number, since it is larger than the sum of its proper divisors (15468075).

665125333 is a wasteful number, since it uses less digits than its factorization.

665125333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15468074.

The product of its digits is 48600, while the sum is 34.

The square root of 665125333 is about 25790.0239046031. The cubic root of 665125333 is about 872.9067057351.

Adding to 665125333 its reverse (333521566), we get a palindrome (998646899).

The spelling of 665125333 in words is "six hundred sixty-five million, one hundred twenty-five thousand, three hundred thirty-three".