55243123156 has 12 divisors (see below), whose sum is σ = 104112039892. Its totient is φ = 25496826048.

The previous prime is 55243123129. The next prime is 55243123163. The reversal of 55243123156 is 65132134255.

It can be written as a sum of positive squares in 2 ways, for example, as 17183015056 + 38060108100 = 131084^2 + 195090^2 .

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, 531183825 + ... + 531183928.

Almost surely, 2^55243123156 is an apocalyptic number.

It is an amenable number.

55243123156 is a deficient number, since it is larger than the sum of its proper divisors (48868916736).

55243123156 is a wasteful number, since it uses less digits than its factorization.

55243123156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062367770 (or 1062367768 counting only the distinct ones).

The product of its digits is 108000, while the sum is 37.

The spelling of 55243123156 in words is "fifty-five billion, two hundred forty-three million, one hundred twenty-three thousand, one hundred fifty-six".