551667278597 has 2 divisors, whose sum is σ = 551667278598. Its totient is φ = 551667278596.

The previous prime is 551667278543. The next prime is 551667278653. The reversal of 551667278597 is 795872766155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 551148851236 + 518427361 = 742394^2 + 22769^2 .

It is a cyclic number.

It is not a de Polignac number, because 551667278597 - 2¹⁴ = 551667262213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551667578597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275833639298 + 275833639299.

It is an arithmetic number, because the mean of its divisors is an integer number (275833639299).

Almost surely, 2^551667278597 is an apocalyptic number.

It is an amenable number.

551667278597 is a deficient number, since it is larger than the sum of its proper divisors (1).

551667278597 is an equidigital number, since it uses as much as digits as its factorization.

551667278597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 222264000, while the sum is 68.

The spelling of 551667278597 in words is "five hundred fifty-one billion, six hundred sixty-seven million, two hundred seventy-eight thousand, five hundred ninety-seven".