55857888875855 has 12 divisors (see below), whose sum is σ = 73677017063496. Its totient is φ = 40623919182000.

The previous prime is 55857888875849. The next prime is 55857888875879.

It is a happy number.

55857888875855 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55857888875855 - 2²⁶ = 55857821766991 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46163543921 + ... + 46163545130.

It is an arithmetic number, because the mean of its divisors is an integer number (6139751421958).

Almost surely, 2^{55857888875855} is an apocalyptic number.

55857888875855 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55857888875855 is a deficient number, since it is larger than the sum of its proper divisors (17819128187641).

55857888875855 is a wasteful number, since it uses less digits than its factorization.

55857888875855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92327089078 (or 92327089067 counting only the distinct ones).

The product of its digits is 200704000000, while the sum is 92.

The spelling of 55857888875855 in words is "fifty-five trillion, eight hundred fifty-seven billion, eight hundred eighty-eight million, eight hundred seventy-five thousand, eight hundred fifty-five".