13559085951 has 4 divisors (see below), whose sum is σ = 18078781272. Its totient is φ = 9039390632.

The previous prime is 13559085889. The next prime is 13559085961. The reversal of 13559085951 is 15958095531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13559085951 - 2¹³ = 13559077759 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13559085894 and 13559085903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13559085961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2259847656 + ... + 2259847661.

It is an arithmetic number, because the mean of its divisors is an integer number (4519695318).

Almost surely, 2^13559085951 is an apocalyptic number.

13559085951 is a deficient number, since it is larger than the sum of its proper divisors (4519695321).

13559085951 is an equidigital number, since it uses as much as digits as its factorization.

13559085951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4519695320.

The product of its (nonzero) digits is 1215000, while the sum is 51.

The spelling of 13559085951 in words is "thirteen billion, five hundred fifty-nine million, eighty-five thousand, nine hundred fifty-one".