280553056313 has 2 divisors, whose sum is σ = 280553056314. Its totient is φ = 280553056312.

The previous prime is 280553056297. The next prime is 280553056331. The reversal of 280553056313 is 313650355082.

Together with next prime (280553056331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 280362837049 + 190219264 = 529493^2 + 13792^2 .

It is a cyclic number.

It is not a de Polignac number, because 280553056313 - 2⁴ = 280553056297 is a prime.

It is not a weakly prime, because it can be changed into another prime (280553056363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140276528156 + 140276528157.

It is an arithmetic number, because the mean of its divisors is an integer number (140276528157).

Almost surely, 2^280553056313 is an apocalyptic number.

It is an amenable number.

280553056313 is a deficient number, since it is larger than the sum of its proper divisors (1).

280553056313 is an equidigital number, since it uses as much as digits as its factorization.

280553056313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 280553056313 in words is "two hundred eighty billion, five hundred fifty-three million, fifty-six thousand, three hundred thirteen".