52066668 has 18 divisors (see below), whose sum is σ = 121547244. Its totient is φ = 17347224.

The previous prime is 52066667. The next prime is 52066681. The reversal of 52066668 is 86666025.

It is not an unprimeable number, because it can be changed into a prime (52066661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23955 + ... + 26037.

Almost surely, 2^52066668 is an apocalyptic number.

It is an amenable number.

52066668 is an abundant number, since it is smaller than the sum of its proper divisors (69480576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52066668 is an equidigital number, since it uses as much as digits as its factorization.

52066668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4173 (or 2088 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 52066668 is about 7215.7236643319. The cubic root of 52066668 is about 373.4105597752.

The spelling of 52066668 in words is "fifty-two million, sixty-six thousand, six hundred sixty-eight".