5552056666621 has 8 divisors (see below), whose sum is σ = 5565775150584. Its totient is φ = 5538352849920.

The previous prime is 5552056666589. The next prime is 5552056666697. The reversal of 5552056666621 is 1266666502555.

It can be written as a sum of positive squares in 4 ways, for example, as 2219843727396 + 3332212939225 = 1489914^2 + 1825435^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5552056666621 - 2⁵ = 5552056666589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5552056660621) 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, 2908620 + ... + 4423141.

It is an arithmetic number, because the mean of its divisors is an integer number (695721893823).

Almost surely, 2^{5552056666621} is an apocalyptic number.

It is an amenable number.

5552056666621 is a deficient number, since it is larger than the sum of its proper divisors (13718483963).

5552056666621 is a wasteful number, since it uses less digits than its factorization.

5552056666621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7333631.

The product of its (nonzero) digits is 19440000, while the sum is 55.

The spelling of 5552056666621 in words is "five trillion, five hundred fifty-two billion, fifty-six million, six hundred sixty-six thousand, six hundred twenty-one".