13455550 has 24 divisors (see below), whose sum is σ = 25837632. Its totient is φ = 5208000.

The previous prime is 13455539. The next prime is 13455577. The reversal of 13455550 is 5555431.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2791 + ... + 5890.

It is an arithmetic number, because the mean of its divisors is an integer number (1076568).

Almost surely, 2^13455550 is an apocalyptic number.

13455550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13455550 is a deficient number, since it is larger than the sum of its proper divisors (12382082).

13455550 is a wasteful number, since it uses less digits than its factorization.

13455550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8724 (or 8719 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 13455550 is about 3668.1807480003. The cubic root of 13455550 is about 237.8485372009.

The spelling of 13455550 in words is "thirteen million, four hundred fifty-five thousand, five hundred fifty".