5558316621 has 24 divisors (see below), whose sum is σ = 8772701280. Its totient is φ = 3109545120.

The previous prime is 5558316619. The next prime is 5558316629. The reversal of 5558316621 is 1266138555.

It is a happy number.

It is not a de Polignac number, because 5558316621 - 2¹ = 5558316619 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5558316629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 584211 + ... + 593648.

It is an arithmetic number, because the mean of its divisors is an integer number (365529220).

Almost surely, 2^5558316621 is an apocalyptic number.

It is an amenable number.

5558316621 is a deficient number, since it is larger than the sum of its proper divisors (3214384659).

5558316621 is a wasteful number, since it uses less digits than its factorization.

5558316621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177897 (or 1177886 counting only the distinct ones).

The product of its digits is 216000, while the sum is 42.

The square root of 5558316621 is about 74554.1187393426. The cubic root of 5558316621 is about 1771.3909736963.

The spelling of 5558316621 in words is "five billion, five hundred fifty-eight million, three hundred sixteen thousand, six hundred twenty-one".