55005000000030 has 48 divisors (see below), whose sum is σ = 143244787827024. Its totient is φ = 14644226889600.

The previous prime is 55005000000023. The next prime is 55005000000031. The reversal of 55005000000030 is 3000000050055.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55005000000031) 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, 495217296 + ... + 495328355.

It is an arithmetic number, because the mean of its divisors is an integer number (2984266413063).

Almost surely, 2^{55005000000030} is an apocalyptic number.

55005000000030 is an abundant number, since it is smaller than the sum of its proper divisors (88239787826994).

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

55005000000030 is a wasteful number, since it uses less digits than its factorization.

55005000000030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990546281 (or 990546278 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 18.

Adding to 55005000000030 its reverse (3000000050055), we get a palindrome (58005000050085).

The spelling of 55005000000030 in words is "fifty-five trillion, five billion, thirty", and thus it is an aban number and an uban number.