55005555005546 has 16 divisors (see below), whose sum is σ = 84175560236808. Its totient is φ = 26948398713600.

The previous prime is 55005555005539. The next prime is 55005555005567. The reversal of 55005555005546 is 64550055550055.

It can be written as a sum of positive squares in 4 ways, for example, as 37109600815225 + 17895954190321 = 6091765^2 + 4230361^2 .

It is a super-2 number, since 2×55005555005546² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55005555005494 and 55005555005503.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340865675 + ... + 341027006.

Almost surely, 2^{55005555005546} is an apocalyptic number.

55005555005546 is a deficient number, since it is larger than the sum of its proper divisors (29170005231262).

55005555005546 is a wasteful number, since it uses less digits than its factorization.

55005555005546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681893497.

The product of its (nonzero) digits is 9375000, while the sum is 50.

The spelling of 55005555005546 in words is "fifty-five trillion, five billion, five hundred fifty-five million, five thousand, five hundred forty-six".