55556684259838 has 16 divisors (see below), whose sum is σ = 83346380078976. Its totient is φ = 27774557839000.

The previous prime is 55556684259833. The next prime is 55556684259919. The reversal of 55556684259838 is 83895248665555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55556684259833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547397445 + ... + 547498927.

It is an arithmetic number, because the mean of its divisors is an integer number (5209148754936).

Almost surely, 2^{55556684259838} is an apocalyptic number.

55556684259838 is a deficient number, since it is larger than the sum of its proper divisors (27789695819138).

55556684259838 is a wasteful number, since it uses less digits than its factorization.

55556684259838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136079.

The product of its digits is 12441600000, while the sum is 79.

The spelling of 55556684259838 in words is "fifty-five trillion, five hundred fifty-six billion, six hundred eighty-four million, two hundred fifty-nine thousand, eight hundred thirty-eight".