556880280347 has 2 divisors, whose sum is σ = 556880280348. Its totient is φ = 556880280346.

The previous prime is 556880280283. The next prime is 556880280349. The reversal of 556880280347 is 743082088655.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 556880280347 - 2⁶ = 556880280283 is a prime.

Together with 556880280349, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 556880280292 and 556880280301.

It is not a weakly prime, because it can be changed into another prime (556880280349) 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, 278440140173 + 278440140174.

It is an arithmetic number, because the mean of its divisors is an integer number (278440140174).

Almost surely, 2^556880280347 is an apocalyptic number.

556880280347 is a deficient number, since it is larger than the sum of its proper divisors (1).

556880280347 is an equidigital number, since it uses as much as digits as its factorization.

556880280347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12902400, while the sum is 56.

The spelling of 556880280347 in words is "five hundred fifty-six billion, eight hundred eighty million, two hundred eighty thousand, three hundred forty-seven".