55555005555050 has 12 divisors (see below), whose sum is σ = 103332310332486. Its totient is φ = 22222002222000.

The previous prime is 55555005555047. The next prime is 55555005555103. The reversal of 55555005555050 is 5055550055555.

It can be written as a sum of positive squares in 3 ways, for example, as 35962581728161 + 19592423826889 = 5996881^2 + 4426333^2 .

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: 1111100111101 = 55555005555050 / (5 + 5 + 5 + 5 + 5 + 0 + 0 + 5 + 5 + 5 + 5 + 0 + 5 + 0).

It is a self number, because there is not a number n which added to its sum of digits gives 55555005555050.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 555550055501 + ... + 555550055600.

Almost surely, 2^{55555005555050} is an apocalyptic number.

55555005555050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55555005555050 is a deficient number, since it is larger than the sum of its proper divisors (47777304777436).

55555005555050 is a wasteful number, since it uses less digits than its factorization.

55555005555050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111100111113 (or 1111100111108 counting only the distinct ones).

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

The spelling of 55555005555050 in words is "fifty-five trillion, five hundred fifty-five billion, five million, five hundred fifty-five thousand, fifty".