20522888 has 16 divisors (see below), whose sum is σ = 40506000. Its totient is φ = 9721296.

The previous prime is 20522881. The next prime is 20522891. The reversal of 20522888 is 88822502.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (20522881) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 67358 + ... + 67661.

It is an arithmetic number, because the mean of its divisors is an integer number (2531625).

Almost surely, 2^20522888 is an apocalyptic number.

It is an amenable number.

20522888 is a deficient number, since it is larger than the sum of its proper divisors (19983112).

20522888 is a wasteful number, since it uses less digits than its factorization.

20522888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135044 (or 135040 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 35.

The square root of 20522888 is about 4530.2194207345. The cubic root of 20522888 is about 273.7870012467.

The spelling of 20522888 in words is "twenty million, five hundred twenty-two thousand, eight hundred eighty-eight".