55500555505506 has 8 divisors (see below), whose sum is σ = 111001111011024. Its totient is φ = 18500185168500.

The previous prime is 55500555505429. The next prime is 55500555505511. The reversal of 55500555505506 is 60550555500555.

It is a sphenic number, since it is the product of 3 distinct primes.

55500555505506 is an admirable number.

It is a super-2 number, since 2×55500555505506² (a number of 28 digits) contains 22 as substring.

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, 4625046292120 + ... + 4625046292131.

It is an arithmetic number, because the mean of its divisors is an integer number (13875138876378).

Almost surely, 2^{55500555505506} is an apocalyptic number.

55500555505506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55500555505506 is a wasteful number, since it uses less digits than its factorization.

55500555505506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9250092584256.

The product of its (nonzero) digits is 11718750, while the sum is 51.

The spelling of 55500555505506 in words is "fifty-five trillion, five hundred billion, five hundred fifty-five million, five hundred five thousand, five hundred six".