505500550441 has 2 divisors, whose sum is σ = 505500550442. Its totient is φ = 505500550440.

The previous prime is 505500550433. The next prime is 505500550547. The reversal of 505500550441 is 144055005505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 492657994816 + 12842555625 = 701896^2 + 113325^2 .

It is a cyclic number.

It is not a de Polignac number, because 505500550441 - 2³ = 505500550433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505500550397 and 505500550406.

It is not a weakly prime, because it can be changed into another prime (505500550411) 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, 252750275220 + 252750275221.

It is an arithmetic number, because the mean of its divisors is an integer number (252750275221).

Almost surely, 2^505500550441 is an apocalyptic number.

It is an amenable number.

505500550441 is a deficient number, since it is larger than the sum of its proper divisors (1).

505500550441 is an equidigital number, since it uses as much as digits as its factorization.

505500550441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50000, while the sum is 34.

Adding to 505500550441 its reverse (144055005505), we get a palindrome (649555555946).

The spelling of 505500550441 in words is "five hundred five billion, five hundred million, five hundred fifty thousand, four hundred forty-one".