13525345440493 has 2 divisors, whose sum is σ = 13525345440494. Its totient is φ = 13525345440492.

The previous prime is 13525345440469. The next prime is 13525345440533. The reversal of 13525345440493 is 39404454352531.

13525345440493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13356488550409 + 168856890084 = 3654653^2 + 410922^2 .

It is a cyclic number.

It is not a de Polignac number, because 13525345440493 - 2¹³ = 13525345432301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13525345440493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13525345440293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6762672720246 + 6762672720247.

It is an arithmetic number, because the mean of its divisors is an integer number (6762672720247).

Almost surely, 2^{13525345440493} is an apocalyptic number.

It is an amenable number.

13525345440493 is a deficient number, since it is larger than the sum of its proper divisors (1).

13525345440493 is an equidigital number, since it uses as much as digits as its factorization.

13525345440493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552000, while the sum is 52.

The spelling of 13525345440493 in words is "thirteen trillion, five hundred twenty-five billion, three hundred forty-five million, four hundred forty thousand, four hundred ninety-three".