52668663 has 4 divisors (see below), whose sum is σ = 70224888. Its totient is φ = 35112440.

The previous prime is 52668619. The next prime is 52668667. The reversal of 52668663 is 36686625.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52668663 - 2²¹ = 50571511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52668667) 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, 8778108 + ... + 8778113.

It is an arithmetic number, because the mean of its divisors is an integer number (17556222).

Almost surely, 2^52668663 is an apocalyptic number.

52668663 is a deficient number, since it is larger than the sum of its proper divisors (17556225).

52668663 is a wasteful number, since it uses less digits than its factorization.

52668663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17556224.

The product of its digits is 311040, while the sum is 42.

The square root of 52668663 is about 7257.3178929960. The cubic root of 52668663 is about 374.8441734794.

The spelling of 52668663 in words is "fifty-two million, six hundred sixty-eight thousand, six hundred sixty-three".