5506604021 has 2 divisors, whose sum is σ = 5506604022. Its totient is φ = 5506604020.

The previous prime is 5506604009. The next prime is 5506604053. The reversal of 5506604021 is 1204066055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5503414225 + 3189796 = 74185^2 + 1786^2 .

It is a cyclic number.

It is not a de Polignac number, because 5506604021 - 2²⁶ = 5439495157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5506604821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2753302010 + 2753302011.

It is an arithmetic number, because the mean of its divisors is an integer number (2753302011).

Almost surely, 2^5506604021 is an apocalyptic number.

It is an amenable number.

5506604021 is a deficient number, since it is larger than the sum of its proper divisors (1).

5506604021 is an equidigital number, since it uses as much as digits as its factorization.

5506604021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 5506604021 is about 74206.4958140458. The cubic root of 5506604021 is about 1765.8803849141.

The spelling of 5506604021 in words is "five billion, five hundred six million, six hundred four thousand, twenty-one".