55777826055 has 32 divisors (see below), whose sum is σ = 102262924800. Its totient is φ = 25431138432.

The previous prime is 55777826009. The next prime is 55777826059. The reversal of 55777826055 is 55062877755.

It is not a de Polignac number, because 55777826055 - 2⁶ = 55777825991 is a prime.

It is a super-3 number, since 3×55777826055³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 55777825986 and 55777826004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55777826059) 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 in 31 ways as a sum of consecutive naturals, for example, 661020 + ... + 740609.

It is an arithmetic number, because the mean of its divisors is an integer number (3195716400).

Almost surely, 2^55777826055 is an apocalyptic number.

55777826055 is a deficient number, since it is larger than the sum of its proper divisors (46485098745).

55777826055 is a wasteful number, since it uses less digits than its factorization.

55777826055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402023.

The product of its (nonzero) digits is 20580000, while the sum is 57.

The spelling of 55777826055 in words is "fifty-five billion, seven hundred seventy-seven million, eight hundred twenty-six thousand, fifty-five".