2520040423 has 2 divisors, whose sum is σ = 2520040424. Its totient is φ = 2520040422.

The previous prime is 2520040403. The next prime is 2520040451. The reversal of 2520040423 is 3240400252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2520040423 - 2⁹ = 2520039911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2520040394 and 2520040403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2520040403) 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 as a sum of consecutive naturals, namely, 1260020211 + 1260020212.

It is an arithmetic number, because the mean of its divisors is an integer number (1260020212).

Almost surely, 2^2520040423 is an apocalyptic number.

2520040423 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520040423 is an equidigital number, since it uses as much as digits as its factorization.

2520040423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 2520040423 is about 50200.0042131472. The cubic root of 2520040423 is about 1360.8256993903.

Adding to 2520040423 its reverse (3240400252), we get a palindrome (5760440675).

The spelling of 2520040423 in words is "two billion, five hundred twenty million, forty thousand, four hundred twenty-three".