13305550 has 12 divisors (see below), whose sum is σ = 24748416. Its totient is φ = 5322200.

The previous prime is 13305517. The next prime is 13305563. The reversal of 13305550 is 5550331.

It is a happy number.

13305550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 133006 + ... + 133105.

It is an arithmetic number, because the mean of its divisors is an integer number (2062368).

Almost surely, 2^13305550 is an apocalyptic number.

13305550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13305550 is a deficient number, since it is larger than the sum of its proper divisors (11442866).

13305550 is a wasteful number, since it uses less digits than its factorization.

13305550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266123 (or 266118 counting only the distinct ones).

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 13305550 is about 3647.6773431870. The cubic root of 13305550 is about 236.9614018456.

Adding to 13305550 its reverse (5550331), we get a palindrome (18855881).

The spelling of 13305550 in words is "thirteen million, three hundred five thousand, five hundred fifty".