55005505555050 has 72 divisors (see below), whose sum is σ = 147782778204204. Its totient is φ = 14668003802880.

The previous prime is 55005505555037. The next prime is 55005505555111. The reversal of 55005505555050 is 5055550550055.

It can be written as a sum of positive squares in 6 ways, for example, as 1834239544281 + 53171266010769 = 1354341^2 + 7291863^2 .

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 = 55005505554987 and 55005505555005.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 56511294 + ... + 57476406.

Almost surely, 2^{55005505555050} is an apocalyptic number.

55005505555050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55005505555050 is an abundant number, since it is smaller than the sum of its proper divisors (92777272649154).

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

55005505555050 is a wasteful number, since it uses less digits than its factorization.

55005505555050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091784 (or 1091776 counting only the distinct ones).

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

The spelling of 55005505555050 in words is "fifty-five trillion, five billion, five hundred five million, five hundred fifty-five thousand, fifty".