55550500505512 has 32 divisors (see below), whose sum is σ = 107144041334400. Its totient is φ = 26984425148800.

The previous prime is 55550500505509. The next prime is 55550500505519. The reversal of 55550500505512 is 21550500505555.

It is not an unprimeable number, because it can be changed into a prime (55550500505519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354233914 + ... + 354390697.

It is an arithmetic number, because the mean of its divisors is an integer number (3348251291700).

Almost surely, 2^{55550500505512} is an apocalyptic number.

It is an amenable number.

55550500505512 is a deficient number, since it is larger than the sum of its proper divisors (51593540828888).

55550500505512 is a wasteful number, since it uses less digits than its factorization.

55550500505512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708624897 (or 708624893 counting only the distinct ones).

The product of its (nonzero) digits is 781250, while the sum is 43.

Adding to 55550500505512 its sum of digits (43), we get a palindrome (55550500505555).

The spelling of 55550500505512 in words is "fifty-five trillion, five hundred fifty billion, five hundred million, five hundred five thousand, five hundred twelve".