13585252045 has 4 divisors (see below), whose sum is σ = 16302302460. Its totient is φ = 10868201632.

The previous prime is 13585252033. The next prime is 13585252061. The reversal of 13585252045 is 54025258531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54025258531 = 51349 ⋅1052119.

It can be written as a sum of positive squares in 2 ways, for example, as 4487526121 + 9097725924 = 66989^2 + 95382^2 .

It is a cyclic number.

It is not a de Polignac number, because 13585252045 - 2²⁵ = 13551697613 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 13585251989 and 13585252007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1358525200 + ... + 1358525209.

It is an arithmetic number, because the mean of its divisors is an integer number (4075575615).

Almost surely, 2^13585252045 is an apocalyptic number.

It is an amenable number.

13585252045 is a deficient number, since it is larger than the sum of its proper divisors (2717050415).

13585252045 is an equidigital number, since it uses as much as digits as its factorization.

13585252045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2717050414.

The product of its (nonzero) digits is 240000, while the sum is 40.

The spelling of 13585252045 in words is "thirteen billion, five hundred eighty-five million, two hundred fifty-two thousand, forty-five".