55643550412 has 12 divisors (see below), whose sum is σ = 97589293480. Its totient is φ = 27760895136.

The previous prime is 55643550401. The next prime is 55643550421. The reversal of 55643550412 is 21405534655.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15217962 + ... + 15221617.

Almost surely, 2^55643550412 is an apocalyptic number.

It is an amenable number.

55643550412 is a deficient number, since it is larger than the sum of its proper divisors (41945743068).

55643550412 is a wasteful number, since it uses less digits than its factorization.

55643550412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30440040 (or 30440038 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 55643550412 in words is "fifty-five billion, six hundred forty-three million, five hundred fifty thousand, four hundred twelve".