551045533 has 2 divisors, whose sum is σ = 551045534. Its totient is φ = 551045532.

The previous prime is 551045519. The next prime is 551045557. The reversal of 551045533 is 335540155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 295908804 + 255136729 = 17202^2 + 15973^2 .

It is a cyclic number.

It is not a de Polignac number, because 551045533 - 2¹³ = 551037341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 551045495 and 551045504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551045503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275522766 + 275522767.

It is an arithmetic number, because the mean of its divisors is an integer number (275522767).

Almost surely, 2^551045533 is an apocalyptic number.

It is an amenable number.

551045533 is a deficient number, since it is larger than the sum of its proper divisors (1).

551045533 is an equidigital number, since it uses as much as digits as its factorization.

551045533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22500, while the sum is 31.

The square root of 551045533 is about 23474.3590540828. The cubic root of 551045533 is about 819.8401101104.

Adding to 551045533 its reverse (335540155), we get a palindrome (886585688).

The spelling of 551045533 in words is "five hundred fifty-one million, forty-five thousand, five hundred thirty-three".