55305550827805 has 16 divisors (see below), whose sum is σ = 66497997524400. Its totient is φ = 44156885463040.

The previous prime is 55305550827719. The next prime is 55305550827841. The reversal of 55305550827805 is 50872805550355.

It can be written as a sum of positive squares in 8 ways, for example, as 2573467265209 + 52732083562596 = 1604203^2 + 7261686^2 .

It is not a de Polignac number, because 55305550827805 - 2⁷ = 55305550827677 is a prime.

It is a super-2 number, since 2×55305550827805² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55305550827805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271044861 + ... + 271248829.

It is an arithmetic number, because the mean of its divisors is an integer number (4156124845275).

Almost surely, 2^{55305550827805} is an apocalyptic number.

It is an amenable number.

55305550827805 is a deficient number, since it is larger than the sum of its proper divisors (11192446696595).

55305550827805 is a wasteful number, since it uses less digits than its factorization.

55305550827805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311024.

The product of its (nonzero) digits is 42000000, while the sum is 58.

The spelling of 55305550827805 in words is "fifty-five trillion, three hundred five billion, five hundred fifty million, eight hundred twenty-seven thousand, eight hundred five".