20233440055 has 32 divisors (see below), whose sum is σ = 25501132800. Its totient is φ = 15382278912.

The previous prime is 20233440049. The next prime is 20233440083. The reversal of 20233440055 is 55004433202.

It is a cyclic number.

It is not a de Polignac number, because 20233440055 - 2⁷ = 20233439927 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 23554216 + ... + 23555074.

It is an arithmetic number, because the mean of its divisors is an integer number (796910400).

Almost surely, 2^20233440055 is an apocalyptic number.

20233440055 is a deficient number, since it is larger than the sum of its proper divisors (5267692745).

20233440055 is a wasteful number, since it uses less digits than its factorization.

20233440055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983.

The product of its (nonzero) digits is 14400, while the sum is 28.

Adding to 20233440055 its reverse (55004433202), we get a palindrome (75237873257).

The spelling of 20233440055 in words is "twenty billion, two hundred thirty-three million, four hundred forty thousand, fifty-five".