551809882487 has 2 divisors, whose sum is σ = 551809882488. Its totient is φ = 551809882486.

The previous prime is 551809882469. The next prime is 551809882489. The reversal of 551809882487 is 784288908155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 551809882487 - 2⁶ = 551809882423 is a prime.

Together with 551809882489, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551809882489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275904941243 + 275904941244.

It is an arithmetic number, because the mean of its divisors is an integer number (275904941244).

Almost surely, 2^551809882487 is an apocalyptic number.

551809882487 is a deficient number, since it is larger than the sum of its proper divisors (1).

551809882487 is an equidigital number, since it uses as much as digits as its factorization.

551809882487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51609600, while the sum is 65.

The spelling of 551809882487 in words is "five hundred fifty-one billion, eight hundred nine million, eight hundred eighty-two thousand, four hundred eighty-seven".