805604555053 has 2 divisors, whose sum is σ = 805604555054. Its totient is φ = 805604555052.

The previous prime is 805604554987. The next prime is 805604555057. The reversal of 805604555053 is 350555406508.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 739759968649 + 65844586404 = 860093^2 + 256602^2 .

It is a cyclic number.

It is not a de Polignac number, because 805604555053 - 2¹³ = 805604546861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 805604554994 and 805604555012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (805604555057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402802277526 + 402802277527.

It is an arithmetic number, because the mean of its divisors is an integer number (402802277527).

Almost surely, 2^805604555053 is an apocalyptic number.

It is an amenable number.

805604555053 is a deficient number, since it is larger than the sum of its proper divisors (1).

805604555053 is an equidigital number, since it uses as much as digits as its factorization.

805604555053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800000, while the sum is 46.

The spelling of 805604555053 in words is "eight hundred five billion, six hundred four million, five hundred fifty-five thousand, fifty-three".