25503005305423 has 2 divisors, whose sum is σ = 25503005305424. Its totient is φ = 25503005305422.

The previous prime is 25503005305399. The next prime is 25503005305541. The reversal of 25503005305423 is 32450350030552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25503005305423 - 2²¹ = 25503003208271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25503005305123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12751502652711 + 12751502652712.

It is an arithmetic number, because the mean of its divisors is an integer number (12751502652712).

Almost surely, 2^{25503005305423} is an apocalyptic number.

25503005305423 is a deficient number, since it is larger than the sum of its proper divisors (1).

25503005305423 is an equidigital number, since it uses as much as digits as its factorization.

25503005305423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270000, while the sum is 37.

Adding to 25503005305423 its reverse (32450350030552), we get a palindrome (57953355335975).

The spelling of 25503005305423 in words is "twenty-five trillion, five hundred three billion, five million, three hundred five thousand, four hundred twenty-three".