2020801520 has 20 divisors (see below), whose sum is σ = 4698363720. Its totient is φ = 808320576.

The previous prime is 2020801511. The next prime is 2020801529. The reversal of 2020801520 is 251080202.

It is an interprime number because it is at equal distance from previous prime (2020801511) and next prime (2020801529).

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2020801492 and 2020801501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020801529) 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, 12629930 + ... + 12630089.

It is an arithmetic number, because the mean of its divisors is an integer number (234918186).

Almost surely, 2^2020801520 is an apocalyptic number.

2020801520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020801520 is an abundant number, since it is smaller than the sum of its proper divisors (2677562200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2020801520 is a wasteful number, since it uses less digits than its factorization.

2020801520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25260032 (or 25260026 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2020801520 is about 44953.3260171036. The cubic root of 2020801520 is about 1264.2740386179.

Adding to 2020801520 its reverse (251080202), we get a palindrome (2271881722).

The spelling of 2020801520 in words is "two billion, twenty million, eight hundred one thousand, five hundred twenty".