55187622331838 has 8 divisors (see below), whose sum is σ = 83947369181040. Its totient is φ = 27205165938160.

The previous prime is 55187622331823. The next prime is 55187622331841. The reversal of 55187622331838 is 83813322678155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194322613703 + ... + 194322613986.

It is an arithmetic number, because the mean of its divisors is an integer number (10493421147630).

Almost surely, 2^{55187622331838} is an apocalyptic number.

55187622331838 is a deficient number, since it is larger than the sum of its proper divisors (28759746849202).

55187622331838 is a wasteful number, since it uses less digits than its factorization.

55187622331838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388645227762.

The product of its digits is 58060800, while the sum is 62.

The spelling of 55187622331838 in words is "fifty-five trillion, one hundred eighty-seven billion, six hundred twenty-two million, three hundred thirty-one thousand, eight hundred thirty-eight".