13233550 has 24 divisors (see below), whose sum is σ = 26853192. Its totient is φ = 4812000.

The previous prime is 13233509. The next prime is 13233553. The reversal of 13233550 is 5533231.

It is a happy number.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13233553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11481 + ... + 12580.

It is an arithmetic number, because the mean of its divisors is an integer number (1118883).

Almost surely, 2^13233550 is an apocalyptic number.

13233550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13233550 is an abundant number, since it is smaller than the sum of its proper divisors (13619642).

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

13233550 is a wasteful number, since it uses less digits than its factorization.

13233550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24084 (or 24079 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 13233550 is about 3637.7946616047. The cubic root of 13233550 is about 236.5332073927.

Adding to 13233550 its reverse (5533231), we get a palindrome (18766781).

The spelling of 13233550 in words is "thirteen million, two hundred thirty-three thousand, five hundred fifty".