20054033553 has 16 divisors (see below), whose sum is σ = 26974771200. Its totient is φ = 13251808080.

The previous prime is 20054033551. The next prime is 20054033599. The reversal of 20054033553 is 35533045002.

It is not a de Polignac number, because 20054033553 - 2¹ = 20054033551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20054033553.

It is not an unprimeable number, because it can be changed into a prime (20054033551) 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, 106968 + ... + 227046.

It is an arithmetic number, because the mean of its divisors is an integer number (1685923200).

Almost surely, 2^20054033553 is an apocalyptic number.

It is an amenable number.

20054033553 is a deficient number, since it is larger than the sum of its proper divisors (6920737647).

20054033553 is a wasteful number, since it uses less digits than its factorization.

20054033553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120572.

The product of its (nonzero) digits is 27000, while the sum is 30.

Adding to 20054033553 its reverse (35533045002), we get a palindrome (55587078555).

The spelling of 20054033553 in words is "twenty billion, fifty-four million, thirty-three thousand, five hundred fifty-three".