55555500550505 has 8 divisors (see below), whose sum is σ = 66756326910912. Its totient is φ = 44384582940208.

The previous prime is 55555500550499. The next prime is 55555500550513. The reversal of 55555500550505 is 50505500555555.

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

It is a cyclic number.

It is not a de Polignac number, because 55555500550505 - 2¹⁸ = 55555500288361 is a prime.

It is a super-2 number, since 2×55555500550505² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 7477183439 + ... + 7477190868.

It is an arithmetic number, because the mean of its divisors is an integer number (8344540863864).

Almost surely, 2^{55555500550505} is an apocalyptic number.

It is an amenable number.

55555500550505 is a deficient number, since it is larger than the sum of its proper divisors (11200826360407).

55555500550505 is a wasteful number, since it uses less digits than its factorization.

55555500550505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14954375055.

The product of its (nonzero) digits is 9765625, while the sum is 50.

The spelling of 55555500550505 in words is "fifty-five trillion, five hundred fifty-five billion, five hundred million, five hundred fifty thousand, five hundred five".