2020057 has 6 divisors (see below), whose sum is σ = 2187582. Its totient is φ = 1864512.

The previous prime is 2020043. The next prime is 2020079. The reversal of 2020057 is 7500202.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 112896 + 1907161 = 336^2 + 1381^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2020057 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 2020057.

It is not an unprimeable number, because it can be changed into a prime (2020027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5808 + ... + 6145.

It is an arithmetic number, because the mean of its divisors is an integer number (364597).

2^2020057 is an apocalyptic number.

It is an amenable number.

2020057 is a deficient number, since it is larger than the sum of its proper divisors (167525).

2020057 is a wasteful number, since it uses less digits than its factorization.

2020057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11979 (or 11966 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 2020057 is about 1421.2870927438. The cubic root of 2020057 is about 126.4118754866.

Adding to 2020057 its reverse (7500202), we get a palindrome (9520259).

The spelling of 2020057 in words is "two million, twenty thousand, fifty-seven".