551211402241 has 2 divisors, whose sum is σ = 551211402242. Its totient is φ = 551211402240.

The previous prime is 551211402211. The next prime is 551211402253. The reversal of 551211402241 is 142204112155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 497060250625 + 54151151616 = 705025^2 + 232704^2 .

It is a cyclic number.

It is not a de Polignac number, because 551211402241 - 2³³ = 542621467649 is a prime.

It is not a weakly prime, because it can be changed into another prime (551211402211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275605701120 + 275605701121.

It is an arithmetic number, because the mean of its divisors is an integer number (275605701121).

Almost surely, 2^551211402241 is an apocalyptic number.

It is an amenable number.

551211402241 is a deficient number, since it is larger than the sum of its proper divisors (1).

551211402241 is an equidigital number, since it uses as much as digits as its factorization.

551211402241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 551211402241 its reverse (142204112155), we get a palindrome (693415514396).

The spelling of 551211402241 in words is "five hundred fifty-one billion, two hundred eleven million, four hundred two thousand, two hundred forty-one".