2020551305 has 16 divisors (see below), whose sum is σ = 2479677840. Its totient is φ = 1580156928.

The previous prime is 2020551301. The next prime is 2020551317. The reversal of 2020551305 is 5031550202.

It can be written as a sum of positive squares in 8 ways, for example, as 931287289 + 1089264016 = 30517^2 + 33004^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020551305 - 2² = 2020551301 is a prime.

It is a super-2 number, since 2×2020551305² = 8165255152274406050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2020551301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16751 + ... + 65739.

It is an arithmetic number, because the mean of its divisors is an integer number (154979865).

Almost surely, 2^2020551305 is an apocalyptic number.

It is an amenable number.

2020551305 is a deficient number, since it is larger than the sum of its proper divisors (459126535).

2020551305 is a wasteful number, since it uses less digits than its factorization.

2020551305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49180.

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

The square root of 2020551305 is about 44950.5428777006. The cubic root of 2020551305 is about 1264.2218557946.

The spelling of 2020551305 in words is "two billion, twenty million, five hundred fifty-one thousand, three hundred five".