15425514242431 has 2 divisors, whose sum is σ = 15425514242432. Its totient is φ = 15425514242430.

The previous prime is 15425514242389. The next prime is 15425514242447. The reversal of 15425514242431 is 13424241552451.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15425514242431 - 2¹³ = 15425514234239 is a prime.

It is a super-2 number, since 2×15425514242431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15425514242731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7712757121215 + 7712757121216.

It is an arithmetic number, because the mean of its divisors is an integer number (7712757121216).

Almost surely, 2^{15425514242431} is an apocalyptic number.

15425514242431 is a deficient number, since it is larger than the sum of its proper divisors (1).

15425514242431 is an equidigital number, since it uses as much as digits as its factorization.

15425514242431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768000, while the sum is 43.

Adding to 15425514242431 its reverse (13424241552451), we get a palindrome (28849755794882).

The spelling of 15425514242431 in words is "fifteen trillion, four hundred twenty-five billion, five hundred fourteen million, two hundred forty-two thousand, four hundred thirty-one".