551503133 has 2 divisors, whose sum is σ = 551503134. Its totient is φ = 551503132.

The previous prime is 551503109. The next prime is 551503151. The reversal of 551503133 is 331305155.

551503133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 473410564 + 78092569 = 21758^2 + 8837^2 .

It is a cyclic number.

It is not a de Polignac number, because 551503133 - 2¹⁰ = 551502109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551503153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275751566 + 275751567.

It is an arithmetic number, because the mean of its divisors is an integer number (275751567).

Almost surely, 2^551503133 is an apocalyptic number.

It is an amenable number.

551503133 is a deficient number, since it is larger than the sum of its proper divisors (1).

551503133 is an equidigital number, since it uses as much as digits as its factorization.

551503133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3375, while the sum is 26.

The square root of 551503133 is about 23484.1038364252. The cubic root of 551503133 is about 820.0669849106.

Adding to 551503133 its reverse (331305155), we get a palindrome (882808288).

The spelling of 551503133 in words is "five hundred fifty-one million, five hundred three thousand, one hundred thirty-three".