5105521423 has 2 divisors, whose sum is σ = 5105521424. Its totient is φ = 5105521422.

The previous prime is 5105521411. The next prime is 5105521457. The reversal of 5105521423 is 3241255015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5105521423 - 2⁹ = 5105520911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5105521391 and 5105521400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5105524423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2552760711 + 2552760712.

It is an arithmetic number, because the mean of its divisors is an integer number (2552760712).

Almost surely, 2^5105521423 is an apocalyptic number.

5105521423 is a deficient number, since it is larger than the sum of its proper divisors (1).

5105521423 is an equidigital number, since it uses as much as digits as its factorization.

5105521423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 5105521423 is about 71452.9315213869. The cubic root of 5105521423 is about 1721.9215750472.

Adding to 5105521423 its reverse (3241255015), we get a palindrome (8346776438).

The spelling of 5105521423 in words is "five billion, one hundred five million, five hundred twenty-one thousand, four hundred twenty-three".