55222153901 has 2 divisors, whose sum is σ = 55222153902. Its totient is φ = 55222153900.

The previous prime is 55222153823. The next prime is 55222153919. The reversal of 55222153901 is 10935122255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51314028676 + 3908125225 = 226526^2 + 62515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55222153901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55222153801) 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, 27611076950 + 27611076951.

It is an arithmetic number, because the mean of its divisors is an integer number (27611076951).

Almost surely, 2^55222153901 is an apocalyptic number.

It is an amenable number.

55222153901 is a deficient number, since it is larger than the sum of its proper divisors (1).

55222153901 is an equidigital number, since it uses as much as digits as its factorization.

55222153901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 55222153901 in words is "fifty-five billion, two hundred twenty-two million, one hundred fifty-three thousand, nine hundred one".