55000055050000 has 60 divisors (see below), whose sum is σ = 133194733436772. Its totient is φ = 22000022000000.

The previous prime is 55000055049991. The next prime is 55000055050007. The reversal of 55000055050000 is 5055000055.

It can be written as a sum of positive squares in 6 ways, for example, as 27187130800384 + 27812924249616 = 5214128^2 + 5273796^2 .

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 (55000055050007) 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, 549950551 + ... + 550050550.

Almost surely, 2^{55000055050000} is an apocalyptic number.

55000055050000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55000055050000 is an abundant number, since it is smaller than the sum of its proper divisors (78194678386772).

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

55000055050000 is an equidigital number, since it uses as much as digits as its factorization.

55000055050000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100001134 (or 1100001108 counting only the distinct ones).

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

The spelling of 55000055050000 in words is "fifty-five trillion, fifty-five million, fifty thousand".