2520606403 has 6 divisors (see below), whose sum is σ = 2932134036. Its totient is φ = 2160519732.

The previous prime is 2520606391. The next prime is 2520606433. The reversal of 2520606403 is 3046060252.

It is a happy number.

It is not a de Polignac number, because 2520606403 - 2⁹ = 2520605891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2520606433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25720425 + ... + 25720522.

It is an arithmetic number, because the mean of its divisors is an integer number (488689006).

Almost surely, 2^2520606403 is an apocalyptic number.

2520606403 is a deficient number, since it is larger than the sum of its proper divisors (411527633).

2520606403 is an equidigital number, since it uses as much as digits as its factorization.

2520606403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51440961 (or 51440954 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 2520606403 is about 50205.6411471858. The cubic root of 2520606403 is about 1360.9275684541.

Adding to 2520606403 its reverse (3046060252), we get a palindrome (5566666655).

The spelling of 2520606403 in words is "two billion, five hundred twenty million, six hundred six thousand, four hundred three".