505560610549 has 2 divisors, whose sum is σ = 505560610550. Its totient is φ = 505560610548.

The previous prime is 505560610547. The next prime is 505560610579. The reversal of 505560610549 is 945016065505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 323749620100 + 181810990449 = 568990^2 + 426393^2 .

It is a cyclic number.

It is not a de Polignac number, because 505560610549 - 2¹ = 505560610547 is a prime.

Together with 505560610547, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 505560610499 and 505560610508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505560610547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252780305274 + 252780305275.

It is an arithmetic number, because the mean of its divisors is an integer number (252780305275).

Almost surely, 2^505560610549 is an apocalyptic number.

It is an amenable number.

505560610549 is a deficient number, since it is larger than the sum of its proper divisors (1).

505560610549 is an equidigital number, since it uses as much as digits as its factorization.

505560610549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810000, while the sum is 46.

The spelling of 505560610549 in words is "five hundred five billion, five hundred sixty million, six hundred ten thousand, five hundred forty-nine".