551520133 has 2 divisors, whose sum is σ = 551520134. Its totient is φ = 551520132.

The previous prime is 551520127. The next prime is 551520157. The reversal of 551520133 is 331025155.

551520133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 548636929 + 2883204 = 23423^2 + 1698^2 .

It is a cyclic number.

It is not a de Polignac number, because 551520133 - 2¹⁷ = 551389061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 551520098 and 551520107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551520533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275760066 + 275760067.

It is an arithmetic number, because the mean of its divisors is an integer number (275760067).

Almost surely, 2^551520133 is an apocalyptic number.

It is an amenable number.

551520133 is a deficient number, since it is larger than the sum of its proper divisors (1).

551520133 is an equidigital number, since it uses as much as digits as its factorization.

551520133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 551520133 is about 23484.4657805963. The cubic root of 551520133 is about 820.0754109707.

Adding to 551520133 its reverse (331025155), we get a palindrome (882545288).

The spelling of 551520133 in words is "five hundred fifty-one million, five hundred twenty thousand, one hundred thirty-three".