20053511304 has 128 divisors (see below), whose sum is σ = 55787149440. Its totient is φ = 5978714112.

The previous prime is 20053511299. The next prime is 20053511311. The reversal of 20053511304 is 40311535002.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 633682 + ... + 664574.

It is an arithmetic number, because the mean of its divisors is an integer number (435837105).

Almost surely, 2^20053511304 is an apocalyptic number.

20053511304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20053511304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27893574720).

20053511304 is an abundant number, since it is smaller than the sum of its proper divisors (35733638136).

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

20053511304 is a wasteful number, since it uses less digits than its factorization.

20053511304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30999 (or 30995 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The spelling of 20053511304 in words is "twenty billion, fifty-three million, five hundred eleven thousand, three hundred four".