551773202257 has 2 divisors, whose sum is σ = 551773202258. Its totient is φ = 551773202256.

The previous prime is 551773202219. The next prime is 551773202273. The reversal of 551773202257 is 752202377155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 513585789201 + 38187413056 = 716649^2 + 195416^2 .

It is a cyclic number.

It is not a de Polignac number, because 551773202257 - 2¹⁹ = 551772677969 is a prime.

It is not a weakly prime, because it can be changed into another prime (551773202297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275886601128 + 275886601129.

It is an arithmetic number, because the mean of its divisors is an integer number (275886601129).

Almost surely, 2^551773202257 is an apocalyptic number.

It is an amenable number.

551773202257 is a deficient number, since it is larger than the sum of its proper divisors (1).

551773202257 is an equidigital number, since it uses as much as digits as its factorization.

551773202257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1029000, while the sum is 46.

The spelling of 551773202257 in words is "five hundred fifty-one billion, seven hundred seventy-three million, two hundred two thousand, two hundred fifty-seven".