55187823836 has 12 divisors (see below), whose sum is σ = 96589358040. Its totient is φ = 27590864400.

The previous prime is 55187823787. The next prime is 55187823853. The reversal of 55187823836 is 63832878155.

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, 720890 + ... + 793761.

It is an arithmetic number, because the mean of its divisors is an integer number (8049113170).

Almost surely, 2^55187823836 is an apocalyptic number.

It is an amenable number.

55187823836 is a deficient number, since it is larger than the sum of its proper divisors (41401534204).

55187823836 is a wasteful number, since it uses less digits than its factorization.

55187823836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523764 (or 1523762 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 56.

The spelling of 55187823836 in words is "fifty-five billion, one hundred eighty-seven million, eight hundred twenty-three thousand, eight hundred thirty-six".