216772522 has 16 divisors (see below), whose sum is σ = 337075200. Its totient is φ = 104443920.

The previous prime is 216772519. The next prime is 216772531. The reversal of 216772522 is 225277612.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7504 + ... + 22132.

It is an arithmetic number, because the mean of its divisors is an integer number (21067200).

Almost surely, 2^216772522 is an apocalyptic number.

216772522 is a deficient number, since it is larger than the sum of its proper divisors (120302678).

216772522 is a wasteful number, since it uses less digits than its factorization.

216772522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14901.

The product of its digits is 23520, while the sum is 34.

The square root of 216772522 is about 14723.1967316884. The cubic root of 216772522 is about 600.7144470861.

The spelling of 216772522 in words is "two hundred sixteen million, seven hundred seventy-two thousand, five hundred twenty-two".