55531413222211 has 2 divisors, whose sum is σ = 55531413222212. Its totient is φ = 55531413222210.

The previous prime is 55531413222163. The next prime is 55531413222221. The reversal of 55531413222211 is 11222231413555.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55531413222211 - 2⁹ = 55531413221699 is a prime.

It is not a weakly prime, because it can be changed into another prime (55531413222221) 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, 27765706611105 + 27765706611106.

It is an arithmetic number, because the mean of its divisors is an integer number (27765706611106).

Almost surely, 2^{55531413222211} is an apocalyptic number.

55531413222211 is a deficient number, since it is larger than the sum of its proper divisors (1).

55531413222211 is an equidigital number, since it uses as much as digits as its factorization.

55531413222211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72000, while the sum is 37.

Adding to 55531413222211 its reverse (11222231413555), we get a palindrome (66753644635766).

The spelling of 55531413222211 in words is "fifty-five trillion, five hundred thirty-one billion, four hundred thirteen million, two hundred twenty-two thousand, two hundred eleven".