133224550 has 48 divisors (see below), whose sum is σ = 258577200. Its totient is φ = 51004800.

The previous prime is 133224547. The next prime is 133224551. The reversal of 133224550 is 55422331.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133224551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201220 + ... + 201880.

It is an arithmetic number, because the mean of its divisors is an integer number (5387025).

Almost surely, 2^133224550 is an apocalyptic number.

133224550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133224550 is a deficient number, since it is larger than the sum of its proper divisors (125352650).

133224550 is a wasteful number, since it uses less digits than its factorization.

133224550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841 (or 836 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 133224550 is about 11542.2939661057. The cubic root of 133224550 is about 510.7339809697.

Adding to 133224550 its reverse (55422331), we get a palindrome (188646881).

The spelling of 133224550 in words is "one hundred thirty-three million, two hundred twenty-four thousand, five hundred fifty".