2020537801 has 4 divisors (see below), whose sum is σ = 2026166400. Its totient is φ = 2014909204.

The previous prime is 2020537781. The next prime is 2020537811. The reversal of 2020537801 is 1087350202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2020537801 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 2020537801.

It is not an unprimeable number, because it can be changed into a prime (2020537811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2813761 + ... + 2814478.

It is an arithmetic number, because the mean of its divisors is an integer number (506541600).

Almost surely, 2^2020537801 is an apocalyptic number.

It is an amenable number.

2020537801 is a deficient number, since it is larger than the sum of its proper divisors (5628599).

2020537801 is an equidigital number, since it uses as much as digits as its factorization.

2020537801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5628598.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 2020537801 is about 44950.3926679178. The cubic root of 2020537801 is about 1264.2190393867.

The spelling of 2020537801 in words is "two billion, twenty million, five hundred thirty-seven thousand, eight hundred one".