551340533 has 2 divisors, whose sum is σ = 551340534. Its totient is φ = 551340532.

The previous prime is 551340529. The next prime is 551340553. The reversal of 551340533 is 335043155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 477947044 + 73393489 = 21862^2 + 8567^2 .

It is a cyclic number.

It is not a de Polignac number, because 551340533 - 2² = 551340529 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 551340496 and 551340505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551340553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275670266 + 275670267.

It is an arithmetic number, because the mean of its divisors is an integer number (275670267).

Almost surely, 2^551340533 is an apocalyptic number.

It is an amenable number.

551340533 is a deficient number, since it is larger than the sum of its proper divisors (1).

551340533 is an equidigital number, since it uses as much as digits as its factorization.

551340533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13500, while the sum is 29.

The square root of 551340533 is about 23480.6416649971. The cubic root of 551340533 is about 819.9863833749.

Adding to 551340533 its reverse (335043155), we get a palindrome (886383688).

The spelling of 551340533 in words is "five hundred fifty-one million, three hundred forty thousand, five hundred thirty-three".