550145133 has 48 divisors (see below), whose sum is σ = 857900160. Its totient is φ = 338688000.

The previous prime is 550145117. The next prime is 550145137. The reversal of 550145133 is 331541055.

It is not a de Polignac number, because 550145133 - 2⁴ = 550145117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 550145097 and 550145106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550145137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1371733 + ... + 1372133.

It is an arithmetic number, because the mean of its divisors is an integer number (17872920).

Almost surely, 2^550145133 is an apocalyptic number.

It is an amenable number.

550145133 is a deficient number, since it is larger than the sum of its proper divisors (307755027).

550145133 is a wasteful number, since it uses less digits than its factorization.

550145133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 550145133 is about 23455.1728409748. The cubic root of 550145133 is about 819.3933312650.

Adding to 550145133 its reverse (331541055), we get a palindrome (881686188).

The spelling of 550145133 in words is "five hundred fifty million, one hundred forty-five thousand, one hundred thirty-three".