55777555332243 has 12 divisors (see below), whose sum is σ = 80567645985528. Its totient is φ = 37185006398400.

The previous prime is 55777555332211. The next prime is 55777555332263. The reversal of 55777555332243 is 34223355577755.

55777555332243 is a `hidden beast` number, since 5 + 5 + 7 + 7 + 7 + 5 + 55 + 332 + 243 = 666.

It is not a de Polignac number, because 55777555332243 - 2⁵ = 55777555332211 is a prime.

It is a super-2 number, since 2×55777555332243² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (55777555332263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16769371 + ... + 19818347.

It is an arithmetic number, because the mean of its divisors is an integer number (6713970498794).

Almost surely, 2^{55777555332243} is an apocalyptic number.

55777555332243 is a deficient number, since it is larger than the sum of its proper divisors (24790090653285).

55777555332243 is a wasteful number, since it uses less digits than its factorization.

55777555332243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5081634 (or 5081631 counting only the distinct ones).

The product of its digits is 463050000, while the sum is 63.

The spelling of 55777555332243 in words is "fifty-five trillion, seven hundred seventy-seven billion, five hundred fifty-five million, three hundred thirty-two thousand, two hundred forty-three".