505550280601 has 2 divisors, whose sum is σ = 505550280602. Its totient is φ = 505550280600.

The previous prime is 505550280541. The next prime is 505550280629. The reversal of 505550280601 is 106082055505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 321080889600 + 184469391001 = 566640^2 + 429499^2 .

It is a cyclic number.

It is not a de Polignac number, because 505550280601 - 2⁹ = 505550280089 is a prime.

It is not a weakly prime, because it can be changed into another prime (505550980601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252775140300 + 252775140301.

It is an arithmetic number, because the mean of its divisors is an integer number (252775140301).

Almost surely, 2^505550280601 is an apocalyptic number.

It is an amenable number.

505550280601 is a deficient number, since it is larger than the sum of its proper divisors (1).

505550280601 is an equidigital number, since it uses as much as digits as its factorization.

505550280601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60000, while the sum is 37.

The spelling of 505550280601 in words is "five hundred five billion, five hundred fifty million, two hundred eighty thousand, six hundred one".