13239525085 has 8 divisors (see below), whose sum is σ = 15889035960. Its totient is φ = 10590549504.

The previous prime is 13239525049. The next prime is 13239525113. The reversal of 13239525085 is 58052593231.

It can be written as a sum of positive squares in 4 ways, for example, as 721943161 + 12517581924 = 26869^2 + 111882^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13239525085 - 2¹³ = 13239516893 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77232 + ... + 180121.

It is an arithmetic number, because the mean of its divisors is an integer number (1986129495).

Almost surely, 2^13239525085 is an apocalyptic number.

It is an amenable number.

13239525085 is a deficient number, since it is larger than the sum of its proper divisors (2649510875).

13239525085 is a wasteful number, since it uses less digits than its factorization.

13239525085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267647.

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 13239525085 in words is "thirteen billion, two hundred thirty-nine million, five hundred twenty-five thousand, eighty-five".