55000055000050 has 48 divisors (see below), whose sum is σ = 102425919212232. Its totient is φ = 21972975782400.

The previous prime is 55000055000047. The next prime is 55000055000053. The reversal of 55000055000050 is 5000055000055.

It is an interprime number because it is at equal distance from previous prime (55000055000047) and next prime (55000055000053).

It can be written as a sum of positive squares in 12 ways, for example, as 11451313872441 + 43548741127609 = 3383979^2 + 6599147^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a junction number, because it is equal to n+sod(n) for n = 55000054999979 and 55000055000024.

It is not an unprimeable number, because it can be changed into a prime (55000055000053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 200109720 + ... + 200384380.

Almost surely, 2^{55000055000050} is an apocalyptic number.

55000055000050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55000055000050 is a deficient number, since it is larger than the sum of its proper divisors (47425864212182).

55000055000050 is a wasteful number, since it uses less digits than its factorization.

55000055000050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279583 (or 279578 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 25.

The spelling of 55000055000050 in words is "fifty-five trillion, fifty-five million, fifty", and thus it is an aban number and an uban number.