2520020413 has 2 divisors, whose sum is σ = 2520020414. Its totient is φ = 2520020412.

The previous prime is 2520020389. The next prime is 2520020513. The reversal of 2520020413 is 3140200252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2112505444 + 407514969 = 45962^2 + 20187^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520020413 - 2²⁵ = 2486465981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2520020513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260010206 + 1260010207.

It is an arithmetic number, because the mean of its divisors is an integer number (1260010207).

Almost surely, 2^2520020413 is an apocalyptic number.

It is an amenable number.

2520020413 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520020413 is an equidigital number, since it uses as much as digits as its factorization.

2520020413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2520020413 is about 50199.8049099795. The cubic root of 2520020413 is about 1360.8220975705.

Adding to 2520020413 its reverse (3140200252), we get a palindrome (5660220665).

The spelling of 2520020413 in words is "two billion, five hundred twenty million, twenty thousand, four hundred thirteen".