52002218 has 16 divisors (see below), whose sum is σ = 86184000. Its totient is φ = 23407296.

The previous prime is 52002217. The next prime is 52002277. The reversal of 52002218 is 81220025.

It is a self number, because there is not a number n which added to its sum of digits gives 52002218.

It is not an unprimeable number, because it can be changed into a prime (52002217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32468 + ... + 34031.

It is an arithmetic number, because the mean of its divisors is an integer number (5386500).

Almost surely, 2^52002218 is an apocalyptic number.

52002218 is a deficient number, since it is larger than the sum of its proper divisors (34181782).

52002218 is a wasteful number, since it uses less digits than its factorization.

52002218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66541.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 52002218 is about 7211.2563399175. The cubic root of 52002218 is about 373.2564224715.

The spelling of 52002218 in words is "fifty-two million, two thousand, two hundred eighteen".