20522150 has 24 divisors (see below), whose sum is σ = 41642424. Its totient is φ = 7462400.

The previous prime is 20522149. The next prime is 20522197. The reversal of 20522150 is 5122502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18107 + ... + 19206.

It is an arithmetic number, because the mean of its divisors is an integer number (1735101).

Almost surely, 2^20522150 is an apocalyptic number.

20522150 is an abundant number, since it is smaller than the sum of its proper divisors (21120274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20522150 is a wasteful number, since it uses less digits than its factorization.

20522150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37336 (or 37331 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 20522150 is about 4530.1379669939. The cubic root of 20522150 is about 273.7837194274.

Adding to 20522150 its reverse (5122502), we get a palindrome (25644652).

The spelling of 20522150 in words is "twenty million, five hundred twenty-two thousand, one hundred fifty".