20002440055 has 16 divisors (see below), whose sum is σ = 25881327360. Its totient is φ = 14752735488.

The previous prime is 20002440001. The next prime is 20002440071. The reversal of 20002440055 is 55004420002.

It is a cyclic number.

It is not a de Polignac number, because 20002440055 - 2²³ = 19994051447 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 15 ways as a sum of consecutive naturals, for example, 137607 + ... + 242776.

It is an arithmetic number, because the mean of its divisors is an integer number (1617582960).

Almost surely, 2^20002440055 is an apocalyptic number.

20002440055 is a deficient number, since it is larger than the sum of its proper divisors (5878887305).

20002440055 is a wasteful number, since it uses less digits than its factorization.

20002440055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381210.

The product of its (nonzero) digits is 1600, while the sum is 22.

Adding to 20002440055 its reverse (55004420002), we get a palindrome (75006860057).

The spelling of 20002440055 in words is "twenty billion, two million, four hundred forty thousand, fifty-five".