50555505505550 has 12 divisors (see below), whose sum is σ = 94033240240416. Its totient is φ = 20222202202200.

The previous prime is 50555505505487. The next prime is 50555505505597. The reversal of 50555505505550 is 5550550555505.

It is a super-2 number, since 2×50555505505550² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50), and also a Moran number because the ratio is a prime number: 1011110110111 = 50555505505550 / (5 + 0 + 5 + 5 + 5 + 5 + 0 + 5 + 5 + 0 + 5 + 5 + 5 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 505555055006 + ... + 505555055105.

It is an arithmetic number, because the mean of its divisors is an integer number (7836103353368).

Almost surely, 2^{50555505505550} is an apocalyptic number.

50555505505550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50555505505550 is a deficient number, since it is larger than the sum of its proper divisors (43477734734866).

50555505505550 is a wasteful number, since it uses less digits than its factorization.

50555505505550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011110110123 (or 1011110110118 counting only the distinct ones).

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

The spelling of 50555505505550 in words is "fifty trillion, five hundred fifty-five billion, five hundred five million, five hundred five thousand, five hundred fifty".