13085551 has 8 divisors (see below), whose sum is σ = 13887360. Its totient is φ = 12303192.

The previous prime is 13085543. The next prime is 13085557. The reversal of 13085551 is 15558031.

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 13085551 - 2³ = 13085543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13085557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3465 + ... + 6178.

It is an arithmetic number, because the mean of its divisors is an integer number (1735920).

Almost surely, 2^13085551 is an apocalyptic number.

13085551 is a deficient number, since it is larger than the sum of its proper divisors (801809).

13085551 is an equidigital number, since it uses as much as digits as its factorization.

13085551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9725.

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 13085551 is about 3617.3956101040. The cubic root of 13085551 is about 235.6481338350.

It can be divided in two parts, 1308 and 5551, that added together give a cube (6859 = 19³).

The spelling of 13085551 in words is "thirteen million, eighty-five thousand, five hundred fifty-one".