13250528685 has 12 divisors (see below), whose sum is σ = 22967583132. Its totient is φ = 7066948608.

The previous prime is 13250528657. The next prime is 13250528723. The reversal of 13250528685 is 58682505231.

13250528685 is a `hidden beast` number, since 13 + 2 + 50 + 528 + 68 + 5 = 666.

13250528685 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 2 ways, for example, as 6490235844 + 6760292841 = 80562^2 + 82221^2 .

It is not a de Polignac number, because 13250528685 - 2¹⁵ = 13250495917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 294456193 = 13250528685 / (1 + 3 + 2 + 5 + 0 + 5 + 2 + 8 + 6 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 13250528685.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 147228052 + ... + 147228141.

It is an arithmetic number, because the mean of its divisors is an integer number (1913965261).

Almost surely, 2^13250528685 is an apocalyptic number.

13250528685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13250528685 is a deficient number, since it is larger than the sum of its proper divisors (9717054447).

13250528685 is a wasteful number, since it uses less digits than its factorization.

13250528685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294456204 (or 294456201 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 45.

The spelling of 13250528685 in words is "thirteen billion, two hundred fifty million, five hundred twenty-eight thousand, six hundred eighty-five".