133250553 has 24 divisors (see below), whose sum is σ = 203112000. Its totient is φ = 83947104.

The previous prime is 133250531. The next prime is 133250561. The reversal of 133250553 is 355052331.

It is not a de Polignac number, because 133250553 - 2⁵ = 133250521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133250153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94548 + ... + 95946.

It is an arithmetic number, because the mean of its divisors is an integer number (8463000).

Almost surely, 2^133250553 is an apocalyptic number.

It is an amenable number.

133250553 is a deficient number, since it is larger than the sum of its proper divisors (69861447).

133250553 is a wasteful number, since it uses less digits than its factorization.

133250553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981 (or 1978 counting only the distinct ones).

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

The square root of 133250553 is about 11543.4203336793. The cubic root of 133250553 is about 510.7672074577.

The spelling of 133250553 in words is "one hundred thirty-three million, two hundred fifty thousand, five hundred fifty-three".