20288853 has 16 divisors (see below), whose sum is σ = 32370240. Its totient is φ = 12485232.

The previous prime is 20288843. The next prime is 20288867. The reversal of 20288853 is 35888202.

It is not a de Polignac number, because 20288853 - 2¹³ = 20280661 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20288843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28551 + ... + 29252.

It is an arithmetic number, because the mean of its divisors is an integer number (2023140).

Almost surely, 2^20288853 is an apocalyptic number.

It is an amenable number.

20288853 is a deficient number, since it is larger than the sum of its proper divisors (12081387).

20288853 is a wasteful number, since it uses less digits than its factorization.

20288853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57825 (or 57819 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 20288853 is about 4504.3149312631. The cubic root of 20288853 is about 272.7422999902.

The spelling of 20288853 in words is "twenty million, two hundred eighty-eight thousand, eight hundred fifty-three".