52220002 has 4 divisors (see below), whose sum is σ = 78330006. Its totient is φ = 26110000.

The previous prime is 52219997. The next prime is 52220011. The reversal of 52220002 is 20002225.

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

It can be written as a sum of positive squares in only one way, i.e., 31708161 + 20511841 = 5631^2 + 4529^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13054999 + ... + 13055002.

Almost surely, 2^52220002 is an apocalyptic number.

52220002 is a deficient number, since it is larger than the sum of its proper divisors (26110004).

52220002 is a wasteful number, since it uses less digits than its factorization.

52220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26110003.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 52220002 is about 7226.3408444385. The cubic root of 52220002 is about 373.7767596415.

Adding to 52220002 its reverse (20002225), we get a palindrome (72222227).

The spelling of 52220002 in words is "fifty-two million, two hundred twenty thousand, two".