55555505050250 has 16 divisors (see below), whose sum is σ = 103999905454536. Its totient is φ = 22222202020000.

The previous prime is 55555505050231. The next prime is 55555505050289. The reversal of 55555505050250 is 5205050555555.

It can be written as a sum of positive squares in 4 ways, for example, as 2980142763481 + 52575362286769 = 1726309^2 + 7250887^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55555505050195 and 55555505050204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111111009851 + ... + 111111010350.

Almost surely, 2^{55555505050250} is an apocalyptic number.

55555505050250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55555505050250 is a deficient number, since it is larger than the sum of its proper divisors (48444400404286).

55555505050250 is a wasteful number, since it uses less digits than its factorization.

55555505050250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222222020218 (or 222222020208 counting only the distinct ones).

The product of its (nonzero) digits is 3906250, while the sum is 47.

The spelling of 55555505050250 in words is "fifty-five trillion, five hundred fifty-five billion, five hundred five million, fifty thousand, two hundred fifty".