55000050550000 has 120 divisors (see below), whose sum is σ = 135019316616912. Its totient is φ = 21698648640000.

The previous prime is 55000050549959. The next prime is 55000050550037. The reversal of 55000050550000 is 5505000055.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3884254 + ... + 11184253.

Almost surely, 2^{55000050550000} is an apocalyptic number.

55000050550000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55000050550000 is an abundant number, since it is smaller than the sum of its proper divisors (80019266066912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55000050550000 is an equidigital number, since it uses as much as digits as its factorization.

55000050550000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15068613 (or 15068587 counting only the distinct ones).

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

Adding to 55000050550000 its reverse (5505000055), we get a palindrome (55005555550055).

The spelling of 55000050550000 in words is "fifty-five trillion, fifty million, five hundred fifty thousand".