55556331846544 has 15 divisors (see below), whose sum is σ = 107640450718203. Its totient is φ = 27778151016048.

The previous prime is 55556331846541. The next prime is 55556331846551. The reversal of 55556331846544 is 44564813365555.

The square root of 55556331846544 is 7453612.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55556331846541) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 28882747 + ... + 30746149.

Almost surely, 2^{55556331846544} is an apocalyptic number.

55556331846544 is the 7453612-nd square number.

It is an amenable number.

55556331846544 is a deficient number, since it is larger than the sum of its proper divisors (52084118871659).

55556331846544 is an frugal number, since it uses more digits than its factorization.

55556331846544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3726814 (or 1863405 counting only the distinct ones).

The product of its digits is 518400000, while the sum is 64.

The spelling of 55556331846544 in words is "fifty-five trillion, five hundred fifty-six billion, three hundred thirty-one million, eight hundred forty-six thousand, five hundred forty-four".