216652522 has 16 divisors (see below), whose sum is σ = 347966280. Its totient is φ = 100807168.

The previous prime is 216652519. The next prime is 216652531. The reversal of 216652522 is 225256612.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 213189201 + 3463321 = 14601^2 + 1861^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32773 + ... + 38824.

Almost surely, 2^216652522 is an apocalyptic number.

216652522 is a deficient number, since it is larger than the sum of its proper divisors (131313758).

216652522 is a wasteful number, since it uses less digits than its factorization.

216652522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71705.

The product of its digits is 14400, while the sum is 31.

The square root of 216652522 is about 14719.1209656012. The cubic root of 216652522 is about 600.6035796528.

The spelling of 216652522 in words is "two hundred sixteen million, six hundred fifty-two thousand, five hundred twenty-two".