55256111421064 has 8 divisors (see below), whose sum is σ = 103605208914510. Its totient is φ = 27628055710528.

The previous prime is 55256111421053. The next prime is 55256111421083. The reversal of 55256111421064 is 46012411165255.

It can be written as a sum of positive squares in only one way, i.e., 45078467402500 + 10177644018564 = 6714050^2 + 3190242^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 55256111421064.

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 as a sum of consecutive naturals, namely, 3453506963809 + ... + 3453506963824.

Almost surely, 2^{55256111421064} is an apocalyptic number.

It is an amenable number.

55256111421064 is a deficient number, since it is larger than the sum of its proper divisors (48349097493446).

55256111421064 is a wasteful number, since it uses less digits than its factorization.

55256111421064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6907013927639 (or 6907013927635 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 43.

The spelling of 55256111421064 in words is "fifty-five trillion, two hundred fifty-six billion, one hundred eleven million, four hundred twenty-one thousand, sixty-four".