55971223044 has 48 divisors (see below), whose sum is σ = 147068092416. Its totient is φ = 16413847200.

The previous prime is 55971223027. The next prime is 55971223067. The reversal of 55971223044 is 44032217955.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55971222987 and 55971223005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6835012 + ... + 6843195.

It is an arithmetic number, because the mean of its divisors is an integer number (3063918592).

Almost surely, 2^55971223044 is an apocalyptic number.

It is an amenable number.

55971223044 is an abundant number, since it is smaller than the sum of its proper divisors (91096869372).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55971223044 is a wasteful number, since it uses less digits than its factorization.

55971223044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13678256 (or 13678254 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 55971223044 in words is "fifty-five billion, nine hundred seventy-one million, two hundred twenty-three thousand, forty-four".