551243455133 has 16 divisors (see below), whose sum is σ = 640556085120. Its totient is φ = 464577422400.

The previous prime is 551243455123. The next prime is 551243455201. The reversal of 551243455133 is 331554342155.

It is not a de Polignac number, because 551243455133 - 2⁴ = 551243455117 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551243455123) 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, 929783 + ... + 1402491.

It is an arithmetic number, because the mean of its divisors is an integer number (40034755320).

Almost surely, 2^551243455133 is an apocalyptic number.

It is an amenable number.

551243455133 is a deficient number, since it is larger than the sum of its proper divisors (89312629987).

551243455133 is a wasteful number, since it uses less digits than its factorization.

551243455133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475508.

The product of its digits is 540000, while the sum is 41.

Adding to 551243455133 its reverse (331554342155), we get a palindrome (882797797288).

The spelling of 551243455133 in words is "five hundred fifty-one billion, two hundred forty-three million, four hundred fifty-five thousand, one hundred thirty-three".