5556506009 has 2 divisors, whose sum is σ = 5556506010. Its totient is φ = 5556506008.

The previous prime is 5556505993. The next prime is 5556506093. The reversal of 5556506009 is 9006056555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4632163600 + 924342409 = 68060^2 + 30403^2 .

It is a cyclic number.

It is not a de Polignac number, because 5556506009 - 2⁴ = 5556505993 is a prime.

It is not a weakly prime, because it can be changed into another prime (5556509009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2778253004 + 2778253005.

It is an arithmetic number, because the mean of its divisors is an integer number (2778253005).

Almost surely, 2^5556506009 is an apocalyptic number.

It is an amenable number.

5556506009 is a deficient number, since it is larger than the sum of its proper divisors (1).

5556506009 is an equidigital number, since it uses as much as digits as its factorization.

5556506009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 202500, while the sum is 41.

The square root of 5556506009 is about 74541.9748128529. The cubic root of 5556506009 is about 1771.1986102948.

The spelling of 5556506009 in words is "five billion, five hundred fifty-six million, five hundred six thousand, nine".