20053992 has 64 divisors (see below), whose sum is σ = 58060800. Its totient is φ = 5653440.

The previous prime is 20053991. The next prime is 20054003. The reversal of 20053992 is 29935002.

It is not an unprimeable number, because it can be changed into a prime (20053991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12517 + ... + 14027.

It is an arithmetic number, because the mean of its divisors is an integer number (907200).

Almost surely, 2^20053992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20053992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29030400).

20053992 is an abundant number, since it is smaller than the sum of its proper divisors (38006808).

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

20053992 is a wasteful number, since it uses less digits than its factorization.

20053992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606 (or 1602 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 20053992 is about 4478.1683755750. The cubic root of 20053992 is about 271.6858035791.

Adding to 20053992 its reverse (29935002), we get a palindrome (49988994).

The spelling of 20053992 in words is "twenty million, fifty-three thousand, nine hundred ninety-two".