13604550 has 24 divisors (see below), whose sum is σ = 33739656. Its totient is φ = 3627840.

The previous prime is 13604533. The next prime is 13604587. The reversal of 13604550 is 5540631.

It is a self number, because there is not a number n which added to its sum of digits gives 13604550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45199 + ... + 45498.

It is an arithmetic number, because the mean of its divisors is an integer number (1405819).

Almost surely, 2^13604550 is an apocalyptic number.

13604550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13604550 is an abundant number, since it is smaller than the sum of its proper divisors (20135106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13604550 is a wasteful number, since it uses less digits than its factorization.

13604550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90712 (or 90707 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 13604550 is about 3688.4346273182. The cubic root of 13604550 is about 238.7232547729.

The spelling of 13604550 in words is "thirteen million, six hundred four thousand, five hundred fifty".