55550500540009 has 2 divisors, whose sum is σ = 55550500540010. Its totient is φ = 55550500540008.

The previous prime is 55550500539929. The next prime is 55550500540027. The reversal of 55550500540009 is 90004500505555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50619311825625 + 4931188714384 = 7114725^2 + 2220628^2 .

It is a cyclic number.

It is not a de Polignac number, because 55550500540009 - 2⁹ = 55550500539497 is a prime.

It is a super-2 number, since 2×55550500540009² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55550500540039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27775250270004 + 27775250270005.

It is an arithmetic number, because the mean of its divisors is an integer number (27775250270005).

Almost surely, 2^{55550500540009} is an apocalyptic number.

It is an amenable number.

55550500540009 is a deficient number, since it is larger than the sum of its proper divisors (1).

55550500540009 is an equidigital number, since it uses as much as digits as its factorization.

55550500540009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 562500, while the sum is 43.

The spelling of 55550500540009 in words is "fifty-five trillion, five hundred fifty billion, five hundred million, five hundred forty thousand, nine".