13550845 has 32 divisors (see below), whose sum is σ = 20641536. Its totient is φ = 8294400.

The previous prime is 13550833. The next prime is 13550851. The reversal of 13550845 is 54805531.

It is not a de Polignac number, because 13550845 - 2¹¹ = 13548797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23197 + ... + 23773.

It is an arithmetic number, because the mean of its divisors is an integer number (645048).

Almost surely, 2^13550845 is an apocalyptic number.

It is an amenable number.

13550845 is a deficient number, since it is larger than the sum of its proper divisors (7090691).

13550845 is a wasteful number, since it uses less digits than its factorization.

13550845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 13550845 is about 3681.1472396523. The cubic root of 13550845 is about 238.4087144259.

The spelling of 13550845 in words is "thirteen million, five hundred fifty thousand, eight hundred forty-five".