55783355338755 has 48 divisors (see below), whose sum is σ = 105725990223360. Its totient is φ = 26983722369600.

The previous prime is 55783355338727. The next prime is 55783355338793.

55783355338755 is a `hidden beast` number, since 5 + 5 + 7 + 8 + 3 + 3 + 5 + 533 + 87 + 5 + 5 = 666.

55783355338755 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55783355338755 - 2¹⁴ = 55783355322371 is a prime.

It is a super-2 number, since 2×55783355338755² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 130521745 + ... + 130948434.

It is an arithmetic number, because the mean of its divisors is an integer number (2202624796320).

Almost surely, 2^{55783355338755} is an apocalyptic number.

55783355338755 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55783355338755 is a deficient number, since it is larger than the sum of its proper divisors (49942634884605).

55783355338755 is a wasteful number, since it uses less digits than its factorization.

55783355338755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261470632 (or 261470629 counting only the distinct ones).

The product of its digits is 3969000000, while the sum is 72.

The spelling of 55783355338755 in words is "fifty-five trillion, seven hundred eighty-three billion, three hundred fifty-five million, three hundred thirty-eight thousand, seven hundred fifty-five".