55505505505050 has 96 divisors (see below), whose sum is σ = 158222590516800. Its totient is φ = 14291072671680.

The previous prime is 55505505505039. The next prime is 55505505505117. The reversal of 55505505505050 is 5050550550555.

It is a super-2 number, since 2×55505505505050² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 55505505504987 and 55505505505005.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 708843424 + ... + 708921723.

It is an arithmetic number, because the mean of its divisors is an integer number (1648151984550).

Almost surely, 2^{55505505505050} is an apocalyptic number.

55505505505050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55505505505050 is an abundant number, since it is smaller than the sum of its proper divisors (102717085011750).

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

55505505505050 is a wasteful number, since it uses less digits than its factorization.

55505505505050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417765197 (or 1417765186 counting only the distinct ones).

The product of its (nonzero) digits is 1953125, while the sum is 45.

The spelling of 55505505505050 in words is "fifty-five trillion, five hundred five billion, five hundred five million, five hundred five thousand, fifty".