55112209157 has 2 divisors, whose sum is σ = 55112209158. Its totient is φ = 55112209156.

The previous prime is 55112209151. The next prime is 55112209199. The reversal of 55112209157 is 75190221155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30476081476 + 24636127681 = 174574^2 + 156959^2 .

It is a cyclic number.

It is not a de Polignac number, because 55112209157 - 2⁶ = 55112209093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55112209157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55112209151) 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, 27556104578 + 27556104579.

It is an arithmetic number, because the mean of its divisors is an integer number (27556104579).

Almost surely, 2^55112209157 is an apocalyptic number.

It is an amenable number.

55112209157 is a deficient number, since it is larger than the sum of its proper divisors (1).

55112209157 is an equidigital number, since it uses as much as digits as its factorization.

55112209157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31500, while the sum is 38.

The spelling of 55112209157 in words is "fifty-five billion, one hundred twelve million, two hundred nine thousand, one hundred fifty-seven".