52220042 has 8 divisors (see below), whose sum is σ = 89520096. Its totient is φ = 22380012.

The previous prime is 52220041. The next prime is 52220053. The reversal of 52220042 is 24002225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 52220042.

It is not an unprimeable number, because it can be changed into a prime (52220041) 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 3 ways as a sum of consecutive naturals, for example, 1864988 + ... + 1865015.

It is an arithmetic number, because the mean of its divisors is an integer number (11190012).

Almost surely, 2^52220042 is an apocalyptic number.

52220042 is a deficient number, since it is larger than the sum of its proper divisors (37300054).

52220042 is a wasteful number, since it uses less digits than its factorization.

52220042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730012.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 52220042 is about 7226.3436120904. The cubic root of 52220042 is about 373.7768550779.

Adding to 52220042 its reverse (24002225), we get a palindrome (76222267).

The spelling of 52220042 in words is "fifty-two million, two hundred twenty thousand, forty-two".