20053988 has 12 divisors (see below), whose sum is σ = 35249340. Its totient is φ = 9982752.

The previous prime is 20053951. The next prime is 20053991. The reversal of 20053988 is 88935002.

It can be written as a sum of positive squares in 2 ways, for example, as 17123044 + 2930944 = 4138^2 + 1712^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10031 + ... + 11862.

It is an arithmetic number, because the mean of its divisors is an integer number (2937445).

Almost surely, 2^20053988 is an apocalyptic number.

It is an amenable number.

20053988 is a deficient number, since it is larger than the sum of its proper divisors (15195352).

20053988 is a wasteful number, since it uses less digits than its factorization.

20053988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22126 (or 22124 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 20053988 is about 4478.1679289638. The cubic root of 20053988 is about 271.6857855155.

The spelling of 20053988 in words is "twenty million, fifty-three thousand, nine hundred eighty-eight".