55581222107 has 2 divisors, whose sum is σ = 55581222108. Its totient is φ = 55581222106.

The previous prime is 55581222041. The next prime is 55581222127. The reversal of 55581222107 is 70122218555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55581222107 - 2⁸ = 55581221851 is a prime.

It is not a weakly prime, because it can be changed into another prime (55581222127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27790611053 + 27790611054.

It is an arithmetic number, because the mean of its divisors is an integer number (27790611054).

Almost surely, 2^55581222107 is an apocalyptic number.

55581222107 is a deficient number, since it is larger than the sum of its proper divisors (1).

55581222107 is an equidigital number, since it uses as much as digits as its factorization.

55581222107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56000, while the sum is 38.

The spelling of 55581222107 in words is "fifty-five billion, five hundred eighty-one million, two hundred twenty-two thousand, one hundred seven".