52222215 has 16 divisors (see below), whose sum is σ = 88471008. Its totient is φ = 26213376.

The previous prime is 52222199. The next prime is 52222223. The reversal of 52222215 is 51222225.

52222215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52222215 - 2⁴ = 52222199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52222191 and 52222200.

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 15 ways as a sum of consecutive naturals, for example, 102142 + ... + 102651.

It is an arithmetic number, because the mean of its divisors is an integer number (5529438).

Almost surely, 2^52222215 is an apocalyptic number.

52222215 is a deficient number, since it is larger than the sum of its proper divisors (36248793).

52222215 is a wasteful number, since it uses less digits than its factorization.

52222215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204818.

The product of its digits is 800, while the sum is 21.

The square root of 52222215 is about 7226.4939631885. The cubic root of 52222215 is about 373.7820395869.

The spelling of 52222215 in words is "fifty-two million, two hundred twenty-two thousand, two hundred fifteen".