55555500050 has 12 divisors (see below), whose sum is σ = 103333230186. Its totient is φ = 22222200000.

The previous prime is 55555500023. The next prime is 55555500059. The reversal of 55555500050 is 5000555555.

It can be written as a sum of positive squares in 3 ways, for example, as 48826415089 + 6729084961 = 220967^2 + 82031^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55555500059) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 555554951 + ... + 555555050.

Almost surely, 2^55555500050 is an apocalyptic number.

55555500050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55555500050 is a deficient number, since it is larger than the sum of its proper divisors (47777730136).

55555500050 is a wasteful number, since it uses less digits than its factorization.

55555500050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111110013 (or 1111110008 counting only the distinct ones).

The product of its (nonzero) digits is 78125, while the sum is 35.

The spelling of 55555500050 in words is "fifty-five billion, five hundred fifty-five million, five hundred thousand, fifty".