2020013555 has 8 divisors (see below), whose sum is σ = 2770304352. Its totient is φ = 1385152128.

The previous prime is 2020013551. The next prime is 2020013563. The reversal of 2020013555 is 5553100202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2020013555 - 2² = 2020013551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2020013555.

It is not an unprimeable number, because it can be changed into a prime (2020013551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28857302 + ... + 28857371.

It is an arithmetic number, because the mean of its divisors is an integer number (346288044).

Almost surely, 2^2020013555 is an apocalyptic number.

2020013555 is a deficient number, since it is larger than the sum of its proper divisors (750290797).

2020013555 is an equidigital number, since it uses as much as digits as its factorization.

2020013555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57714685.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 2020013555 is about 44944.5609056313. The cubic root of 2020013555 is about 1264.1096924095.

Adding to 2020013555 its reverse (5553100202), we get a palindrome (7573113757).

The spelling of 2020013555 in words is "two billion, twenty million, thirteen thousand, five hundred fifty-five".