551142253221887 has 2 divisors, whose sum is σ = 551142253221888. Its totient is φ = 551142253221886.

The previous prime is 551142253221869. The next prime is 551142253221899. The reversal of 551142253221887 is 788122352241155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 551142253221887 - 2¹⁴ = 551142253205503 is a prime.

It is a super-3 number, since 3×551142253221887³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551142253221827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275571126610943 + 275571126610944.

It is an arithmetic number, because the mean of its divisors is an integer number (275571126610944).

Almost surely, 2^{551142253221887} is an apocalyptic number.

551142253221887 is a deficient number, since it is larger than the sum of its proper divisors (1).

551142253221887 is an equidigital number, since it uses as much as digits as its factorization.

551142253221887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752000, while the sum is 56.

The spelling of 551142253221887 in words is "five hundred fifty-one trillion, one hundred forty-two billion, two hundred fifty-three million, two hundred twenty-one thousand, eight hundred eighty-seven".