55420341323 has 2 divisors, whose sum is σ = 55420341324. Its totient is φ = 55420341322.

The previous prime is 55420341271. The next prime is 55420341329. The reversal of 55420341323 is 32314302455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55420341323 - 2¹² = 55420337227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55420341323.

It is not a weakly prime, because it can be changed into another prime (55420341329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27710170661 + 27710170662.

It is an arithmetic number, because the mean of its divisors is an integer number (27710170662).

Almost surely, 2^55420341323 is an apocalyptic number.

55420341323 is a deficient number, since it is larger than the sum of its proper divisors (1).

55420341323 is an equidigital number, since it uses as much as digits as its factorization.

55420341323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 55420341323 its reverse (32314302455), we get a palindrome (87734643778).

The spelling of 55420341323 in words is "fifty-five billion, four hundred twenty million, three hundred forty-one thousand, three hundred twenty-three".