52990666 has 16 divisors (see below), whose sum is σ = 87822144. Its totient is φ = 23852224.

The previous prime is 52990657. The next prime is 52990669. The reversal of 52990666 is 66609925.

It is not an unprimeable number, because it can be changed into a prime (52990669) 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 7 ways as a sum of consecutive naturals, for example, 33100 + ... + 34663.

It is an arithmetic number, because the mean of its divisors is an integer number (5488884).

Almost surely, 2^52990666 is an apocalyptic number.

52990666 is a deficient number, since it is larger than the sum of its proper divisors (34831478).

52990666 is a wasteful number, since it uses less digits than its factorization.

52990666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67805.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 52990666 is about 7279.4687993012. The cubic root of 52990666 is about 375.6065230764.

The spelling of 52990666 in words is "fifty-two million, nine hundred ninety thousand, six hundred sixty-six".