55783355338756 has 6 divisors (see below), whose sum is σ = 97620871842830. Its totient is φ = 27891677669376.

The previous prime is 55783355338727. The next prime is 55783355338793. The reversal of 55783355338756 is 65783355338755.

It can be written as a sum of positive squares in only one way, i.e., 53844482894400 + 1938872444356 = 7337880^2 + 1392434^2 .

It is a super-2 number, since 2×55783355338756² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6972919417341 + ... + 6972919417348.

Almost surely, 2^{55783355338756} is an apocalyptic number.

It is an amenable number.

55783355338756 is a deficient number, since it is larger than the sum of its proper divisors (41837516504074).

55783355338756 is a wasteful number, since it uses less digits than its factorization.

55783355338756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13945838834693 (or 13945838834691 counting only the distinct ones).

The product of its digits is 4762800000, while the sum is 73.

Subtracting 55783355338756 from its reverse (65783355338755), we obtain a palindrome (9999999999999).

The spelling of 55783355338756 in words is "fifty-five trillion, seven hundred eighty-three billion, three hundred fifty-five million, three hundred thirty-eight thousand, seven hundred fifty-six".