551433133 has 4 divisors (see below), whose sum is σ = 552614400. Its totient is φ = 550251868.

The previous prime is 551433121. The next prime is 551433137. The reversal of 551433133 is 331334155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 551433133 - 2⁵ = 551433101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551433137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 589933 + ... + 590866.

It is an arithmetic number, because the mean of its divisors is an integer number (138153600).

Almost surely, 2^551433133 is an apocalyptic number.

It is an amenable number.

551433133 is a deficient number, since it is larger than the sum of its proper divisors (1181267).

551433133 is a wasteful number, since it uses less digits than its factorization.

551433133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181266.

The product of its digits is 8100, while the sum is 28.

The square root of 551433133 is about 23482.6134192939. The cubic root of 551433133 is about 820.0322875448.

Adding to 551433133 its reverse (331334155), we get a palindrome (882767288).

The spelling of 551433133 in words is "five hundred fifty-one million, four hundred thirty-three thousand, one hundred thirty-three".