55550545505506 has 32 divisors (see below), whose sum is σ = 86369460192000. Its totient is φ = 26764525237632.

The previous prime is 55550545505503. The next prime is 55550545505519. The reversal of 55550545505506 is 60550554505555.

It is not an unprimeable number, because it can be changed into a prime (55550545505503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220655430 + ... + 220907038.

It is an arithmetic number, because the mean of its divisors is an integer number (2699045631000).

Almost surely, 2^{55550545505506} is an apocalyptic number.

55550545505506 is a deficient number, since it is larger than the sum of its proper divisors (30818914686494).

55550545505506 is a wasteful number, since it uses less digits than its factorization.

55550545505506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259146.

The product of its (nonzero) digits is 46875000, while the sum is 55.

The spelling of 55550545505506 in words is "fifty-five trillion, five hundred fifty billion, five hundred forty-five million, five hundred five thousand, five hundred six".