20533254299 has 4 divisors (see below), whose sum is σ = 20552041536. Its totient is φ = 20514467064.

The previous prime is 20533254293. The next prime is 20533254317. The reversal of 20533254299 is 99245233502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20533254299 - 2⁴ = 20533254283 is a prime.

It is a super-2 number, since 2×20533254299² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20533254293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9391979 + ... + 9394164.

It is an arithmetic number, because the mean of its divisors is an integer number (5138010384).

Almost surely, 2^20533254299 is an apocalyptic number.

20533254299 is a deficient number, since it is larger than the sum of its proper divisors (18787237).

20533254299 is a wasteful number, since it uses less digits than its factorization.

20533254299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18787236.

The product of its (nonzero) digits is 583200, while the sum is 44.

The spelling of 20533254299 in words is "twenty billion, five hundred thirty-three million, two hundred fifty-four thousand, two hundred ninety-nine".