133325055 has 16 divisors (see below), whose sum is σ = 237022560. Its totient is φ = 71106624.

The previous prime is 133325039. The next prime is 133325057. The reversal of 133325055 is 550523331.

It is not a de Polignac number, because 133325055 - 2⁴ = 133325039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133325057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493662 + ... + 493931.

It is an arithmetic number, because the mean of its divisors is an integer number (14813910).

Almost surely, 2^133325055 is an apocalyptic number.

133325055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133325055 is a deficient number, since it is larger than the sum of its proper divisors (103697505).

133325055 is an equidigital number, since it uses as much as digits as its factorization.

133325055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987607 (or 987601 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

The square root of 133325055 is about 11546.6469158800. The cubic root of 133325055 is about 510.8623817687.

Adding to 133325055 its reverse (550523331), we get a palindrome (683848386).

The spelling of 133325055 in words is "one hundred thirty-three million, three hundred twenty-five thousand, fifty-five".