55231270117 has 2 divisors, whose sum is σ = 55231270118. Its totient is φ = 55231270116.

The previous prime is 55231270099. The next prime is 55231270177. The reversal of 55231270117 is 71107213255.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34839715716 + 20391554401 = 186654^2 + 142799^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55231270117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55231270177) 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 as a sum of consecutive naturals, namely, 27615635058 + 27615635059.

It is an arithmetic number, because the mean of its divisors is an integer number (27615635059).

Almost surely, 2^55231270117 is an apocalyptic number.

It is an amenable number.

55231270117 is a deficient number, since it is larger than the sum of its proper divisors (1).

55231270117 is an equidigital number, since it uses as much as digits as its factorization.

55231270117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14700, while the sum is 34.

The spelling of 55231270117 in words is "fifty-five billion, two hundred thirty-one million, two hundred seventy thousand, one hundred seventeen".