55550050555550 has 24 divisors (see below), whose sum is σ = 104346094973832. Its totient is φ = 22000020020000.

The previous prime is 55550050555513. The next prime is 55550050555553. The reversal of 55550050555550 is 5555505005555.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55550050555553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5499999956 + ... + 5500010055.

It is an arithmetic number, because the mean of its divisors is an integer number (4347753957243).

Almost surely, 2^{55550050555550} is an apocalyptic number.

55550050555550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55550050555550 is a deficient number, since it is larger than the sum of its proper divisors (48796044418282).

55550050555550 is a wasteful number, since it uses less digits than its factorization.

55550050555550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11000010124 (or 11000010119 counting only the distinct ones).

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

The spelling of 55550050555550 in words is "fifty-five trillion, five hundred fifty billion, fifty million, five hundred fifty-five thousand, five hundred fifty".