20116522 has 16 divisors (see below), whose sum is σ = 30916800. Its totient is φ = 9813600.

The previous prime is 20116487. The next prime is 20116531. The reversal of 20116522 is 22561102.

It is a self number, because there is not a number n which added to its sum of digits gives 20116522.

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, 17254 + ... + 18382.

It is an arithmetic number, because the mean of its divisors is an integer number (1932300).

Almost surely, 2^20116522 is an apocalyptic number.

20116522 is a deficient number, since it is larger than the sum of its proper divisors (10800278).

20116522 is a wasteful number, since it uses less digits than its factorization.

20116522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 20116522 is about 4485.1445907574. The cubic root of 20116522 is about 271.9678901686.

Adding to 20116522 its reverse (22561102), we get a palindrome (42677624).

The spelling of 20116522 in words is "twenty million, one hundred sixteen thousand, five hundred twenty-two".