551220052349 has 2 divisors, whose sum is σ = 551220052350. Its totient is φ = 551220052348.

The previous prime is 551220052297. The next prime is 551220052367. The reversal of 551220052349 is 943250022155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 383105292025 + 168114760324 = 618955^2 + 410018^2 .

It is a cyclic number.

It is not a de Polignac number, because 551220052349 - 2¹⁶ = 551219986813 is a prime.

It is a super-2 number, since 2×551220052349² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551220052379) 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, 275610026174 + 275610026175.

It is an arithmetic number, because the mean of its divisors is an integer number (275610026175).

Almost surely, 2^551220052349 is an apocalyptic number.

It is an amenable number.

551220052349 is a deficient number, since it is larger than the sum of its proper divisors (1).

551220052349 is an equidigital number, since it uses as much as digits as its factorization.

551220052349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 551220052349 in words is "five hundred fifty-one billion, two hundred twenty million, fifty-two thousand, three hundred forty-nine".