55222153391 has 2 divisors, whose sum is σ = 55222153392. Its totient is φ = 55222153390.

The previous prime is 55222153319. The next prime is 55222153411. The reversal of 55222153391 is 19335122255.

It is a happy number.

Together with previous prime (55222153319) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55222153391 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55222153291) 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, 27611076695 + 27611076696.

It is an arithmetic number, because the mean of its divisors is an integer number (27611076696).

Almost surely, 2^55222153391 is an apocalyptic number.

55222153391 is a deficient number, since it is larger than the sum of its proper divisors (1).

55222153391 is an equidigital number, since it uses as much as digits as its factorization.

55222153391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81000, while the sum is 38.

The spelling of 55222153391 in words is "fifty-five billion, two hundred twenty-two million, one hundred fifty-three thousand, three hundred ninety-one".