55783433955 has 8 divisors (see below), whose sum is σ = 89253494352. Its totient is φ = 29751164768.

The previous prime is 55783433921. The next prime is 55783434011. The reversal of 55783433955 is 55933438755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55783433955 - 2¹⁸ = 55783171811 is a prime.

It is a super-2 number, since 2×55783433955² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55783433895 and 55783433904.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1859447784 + ... + 1859447813.

It is an arithmetic number, because the mean of its divisors is an integer number (11156686794).

Almost surely, 2^55783433955 is an apocalyptic number.

55783433955 is a deficient number, since it is larger than the sum of its proper divisors (33470060397).

55783433955 is a wasteful number, since it uses less digits than its factorization.

55783433955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3718895605.

The product of its digits is 34020000, while the sum is 57.

The spelling of 55783433955 in words is "fifty-five billion, seven hundred eighty-three million, four hundred thirty-three thousand, nine hundred fifty-five".