55050500500000 has 84 divisors (see below), whose sum is σ = 135474108213906. Its totient is φ = 22020200000000.

The previous prime is 55050500499979. The next prime is 55050500500003. The reversal of 55050500500000 is 500505055.

It can be written as a sum of positive squares in 7 ways, for example, as 18071307073296 + 36979193426704 = 4251036^2 + 6081052^2 .

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

It is not an unprimeable number, because it can be changed into a prime (55050500500003) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 54550501 + ... + 55550500.

Almost surely, 2^{55050500500000} is an apocalyptic number.

55050500500000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55050500500000 is an abundant number, since it is smaller than the sum of its proper divisors (80423607713906).

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

55050500500000 is an frugal number, since it uses more digits than its factorization.

55050500500000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110101041 (or 110101008 counting only the distinct ones).

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

The spelling of 55050500500000 in words is "fifty-five trillion, fifty billion, five hundred million, five hundred thousand".