55227030517 has 2 divisors, whose sum is σ = 55227030518. Its totient is φ = 55227030516.

The previous prime is 55227030499. The next prime is 55227030553. The reversal of 55227030517 is 71503072255.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54625505841 + 601524676 = 233721^2 + 24526^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55227030517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55227037517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27613515258 + 27613515259.

It is an arithmetic number, because the mean of its divisors is an integer number (27613515259).

Almost surely, 2^55227030517 is an apocalyptic number.

It is an amenable number.

55227030517 is a deficient number, since it is larger than the sum of its proper divisors (1).

55227030517 is an equidigital number, since it uses as much as digits as its factorization.

55227030517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73500, while the sum is 37.

The spelling of 55227030517 in words is "fifty-five billion, two hundred twenty-seven million, thirty thousand, five hundred seventeen".