2020009555 has 16 divisors (see below), whose sum is σ = 2439187200. Its totient is φ = 1605915360.

The previous prime is 2020009543. The next prime is 2020009559. The reversal of 2020009555 is 5559000202.

It is not a de Polignac number, because 2020009555 - 2²⁵ = 1986455123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2020009559) 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 15 ways as a sum of consecutive naturals, for example, 1074106 + ... + 1075984.

It is an arithmetic number, because the mean of its divisors is an integer number (152449200).

Almost surely, 2^2020009555 is an apocalyptic number.

2020009555 is a deficient number, since it is larger than the sum of its proper divisors (419177645).

2020009555 is a wasteful number, since it uses less digits than its factorization.

2020009555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3114.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 2020009555 is about 44944.5164063426. The cubic root of 2020009555 is about 1264.1088580187.

Adding to 2020009555 its reverse (5559000202), we get a palindrome (7579009757).

The spelling of 2020009555 in words is "two billion, twenty million, nine thousand, five hundred fifty-five".