5551055550605 has 4 divisors (see below), whose sum is σ = 6661266660732. Its totient is φ = 4440844440480.

The previous prime is 5551055550563. The next prime is 5551055550731. The reversal of 5551055550605 is 5060555501555.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2190675288649 + 3360380261956 = 1480093^2 + 1833134^2 .

It is not a de Polignac number, because 5551055550605 - 2¹⁴ = 5551055534221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5551055550605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555105555056 + ... + 555105555065.

It is an arithmetic number, because the mean of its divisors is an integer number (1665316665183).

Almost surely, 2^{5551055550605} is an apocalyptic number.

It is an amenable number.

5551055550605 is a deficient number, since it is larger than the sum of its proper divisors (1110211110127).

5551055550605 is a wasteful number, since it uses less digits than its factorization.

5551055550605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110211110126.

The product of its (nonzero) digits is 2343750, while the sum is 47.

The spelling of 5551055550605 in words is "five trillion, five hundred fifty-one billion, fifty-five million, five hundred fifty thousand, six hundred five".