55421046223 has 2 divisors, whose sum is σ = 55421046224. Its totient is φ = 55421046222.

The previous prime is 55421046209. The next prime is 55421046227. The reversal of 55421046223 is 32264012455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55421046223 - 2¹³ = 55421038031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55421046227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27710523111 + 27710523112.

It is an arithmetic number, because the mean of its divisors is an integer number (27710523112).

Almost surely, 2^55421046223 is an apocalyptic number.

55421046223 is a deficient number, since it is larger than the sum of its proper divisors (1).

55421046223 is an equidigital number, since it uses as much as digits as its factorization.

55421046223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 55421046223 its reverse (32264012455), we get a palindrome (87685058678).

The spelling of 55421046223 in words is "fifty-five billion, four hundred twenty-one million, forty-six thousand, two hundred twenty-three".