52163218 has 16 divisors (see below), whose sum is σ = 82298880. Its totient is φ = 24748416.

The previous prime is 52163213. The next prime is 52163231. The reversal of 52163218 is 81236125.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (52163213) 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, 1378 + ... + 10306.

It is an arithmetic number, because the mean of its divisors is an integer number (5143680).

Almost surely, 2^52163218 is an apocalyptic number.

52163218 is a deficient number, since it is larger than the sum of its proper divisors (30135662).

52163218 is a wasteful number, since it uses less digits than its factorization.

52163218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9081.

The product of its digits is 2880, while the sum is 28.

The square root of 52163218 is about 7222.4108163410. The cubic root of 52163218 is about 373.6412289601.

The spelling of 52163218 in words is "fifty-two million, one hundred sixty-three thousand, two hundred eighteen".