55434401401 has 2 divisors, whose sum is σ = 55434401402. Its totient is φ = 55434401400.

The previous prime is 55434401389. The next prime is 55434401447. The reversal of 55434401401 is 10410443455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54587649600 + 846751801 = 233640^2 + 29099^2 .

It is a cyclic number.

It is not a de Polignac number, because 55434401401 - 2³⁵ = 21074663033 is a prime.

It is not a weakly prime, because it can be changed into another prime (55434401471) 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, 27717200700 + 27717200701.

It is an arithmetic number, because the mean of its divisors is an integer number (27717200701).

Almost surely, 2^55434401401 is an apocalyptic number.

It is an amenable number.

55434401401 is a deficient number, since it is larger than the sum of its proper divisors (1).

55434401401 is an equidigital number, since it uses as much as digits as its factorization.

55434401401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 55434401401 its reverse (10410443455), we get a palindrome (65844844856).

The spelling of 55434401401 in words is "fifty-five billion, four hundred thirty-four million, four hundred one thousand, four hundred one".