13525345440505 has 16 divisors (see below), whose sum is σ = 16301607480720. Its totient is φ = 10772816228352.

The previous prime is 13525345440493. The next prime is 13525345440533. The reversal of 13525345440505 is 50504454352531.

13525345440505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 7255249312249 + 6270096128256 = 2693557^2 + 2504016^2 .

It is a cyclic number.

It is not a de Polignac number, because 13525345440505 - 2¹⁹ = 13525344916217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88245297 + ... + 88398433.

It is an arithmetic number, because the mean of its divisors is an integer number (1018850467545).

Almost surely, 2^{13525345440505} is an apocalyptic number.

It is an amenable number.

13525345440505 is a deficient number, since it is larger than the sum of its proper divisors (2776262040215).

13525345440505 is a wasteful number, since it uses less digits than its factorization.

13525345440505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230508.

The product of its (nonzero) digits is 3600000, while the sum is 46.

The spelling of 13525345440505 in words is "thirteen trillion, five hundred twenty-five billion, three hundred forty-five million, four hundred forty thousand, five hundred five".