55779733797755 has 64 divisors (see below), whose sum is σ = 75199058850816. Its totient is φ = 39375756288000.

The previous prime is 55779733797721. The next prime is 55779733797883.

55779733797755 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55779733797755 - 2³² = 55775438830459 is a prime.

It is a super-2 number, since 2×55779733797755² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 277243595 + ... + 277444715.

It is an arithmetic number, because the mean of its divisors is an integer number (1174985294544).

Almost surely, 2^{55779733797755} is an apocalyptic number.

55779733797755 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55779733797755 is a deficient number, since it is larger than the sum of its proper divisors (19419325053061).

55779733797755 is a wasteful number, since it uses less digits than its factorization.

55779733797755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202308.

The product of its digits is 53603825625, while the sum is 86.

The spelling of 55779733797755 in words is "fifty-five trillion, seven hundred seventy-nine billion, seven hundred thirty-three million, seven hundred ninety-seven thousand, seven hundred fifty-five".