52015222 has 8 divisors (see below), whose sum is σ = 89168976. Its totient is φ = 22292232.

The previous prime is 52015211. The next prime is 52015247. The reversal of 52015222 is 22251025.

52015222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52015222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1857673 + ... + 1857700.

It is an arithmetic number, because the mean of its divisors is an integer number (11146122).

Almost surely, 2^52015222 is an apocalyptic number.

52015222 is a deficient number, since it is larger than the sum of its proper divisors (37153754).

52015222 is a wasteful number, since it uses less digits than its factorization.

52015222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3715382.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 52015222 is about 7212.1579294966. The cubic root of 52015222 is about 373.2875328239.

Adding to 52015222 its reverse (22251025), we get a palindrome (74266247).

The spelling of 52015222 in words is "fifty-two million, fifteen thousand, two hundred twenty-two".