551123133 has 16 divisors (see below), whose sum is σ = 802099200. Its totient is φ = 333820080.

The previous prime is 551123129. The next prime is 551123149. The reversal of 551123133 is 331321155.

It is not a de Polignac number, because 551123133 - 2² = 551123129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551123113) 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, 70158 + ... + 77616.

It is an arithmetic number, because the mean of its divisors is an integer number (50131200).

Almost surely, 2^551123133 is an apocalyptic number.

It is an amenable number.

551123133 is a deficient number, since it is larger than the sum of its proper divisors (250976067).

551123133 is a wasteful number, since it uses less digits than its factorization.

551123133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9712.

The product of its digits is 1350, while the sum is 24.

The square root of 551123133 is about 23476.0118631764. The cubic root of 551123133 is about 819.8785924757.

Adding to 551123133 its reverse (331321155), we get a palindrome (882444288).

The spelling of 551123133 in words is "five hundred fifty-one million, one hundred twenty-three thousand, one hundred thirty-three".