20154500033 has 2 divisors, whose sum is σ = 20154500034. Its totient is φ = 20154500032.

The previous prime is 20154500027. The next prime is 20154500089. The reversal of 20154500033 is 33000545102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10084778929 + 10069721104 = 100423^2 + 100348^2 .

It is a cyclic number.

It is not a de Polignac number, because 20154500033 - 2¹⁰ = 20154499009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20154499981 and 20154500008.

It is not a weakly prime, because it can be changed into another prime (20154590033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10077250016 + 10077250017.

It is an arithmetic number, because the mean of its divisors is an integer number (10077250017).

Almost surely, 2^20154500033 is an apocalyptic number.

It is an amenable number.

20154500033 is a deficient number, since it is larger than the sum of its proper divisors (1).

20154500033 is an equidigital number, since it uses as much as digits as its factorization.

20154500033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 23.

The spelling of 20154500033 in words is "twenty billion, one hundred fifty-four million, five hundred thousand, thirty-three".