13423550 has 36 divisors (see below), whose sum is σ = 29049480. Its totient is φ = 4601520.

The previous prime is 13423547. The next prime is 13423573. The reversal of 13423550 is 5532431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 290 + ... + 5189.

It is an arithmetic number, because the mean of its divisors is an integer number (806930).

Almost surely, 2^13423550 is an apocalyptic number.

13423550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13423550 is an abundant number, since it is smaller than the sum of its proper divisors (15625930).

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

13423550 is a wasteful number, since it uses less digits than its factorization.

13423550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5505 (or 5493 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 13423550 is about 3663.8163163565. The cubic root of 13423550 is about 237.6598370042.

Adding to 13423550 its reverse (5532431), we get a palindrome (18955981).

The spelling of 13423550 in words is "thirteen million, four hundred twenty-three thousand, five hundred fifty".