55040444401 has 2 divisors, whose sum is σ = 55040444402. Its totient is φ = 55040444400.

The previous prime is 55040444363. The next prime is 55040444419. The reversal of 55040444401 is 10444404055.

55040444401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54263373025 + 777071376 = 232945^2 + 27876^2 .

It is a cyclic number.

It is not a de Polignac number, because 55040444401 - 2¹⁵ = 55040411633 is a prime.

It is not a weakly prime, because it can be changed into another prime (55040444471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27520222200 + 27520222201.

It is an arithmetic number, because the mean of its divisors is an integer number (27520222201).

Almost surely, 2^55040444401 is an apocalyptic number.

It is an amenable number.

55040444401 is a deficient number, since it is larger than the sum of its proper divisors (1).

55040444401 is an equidigital number, since it uses as much as digits as its factorization.

55040444401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25600, while the sum is 31.

Adding to 55040444401 its reverse (10444404055), we get a palindrome (65484848456).

The spelling of 55040444401 in words is "fifty-five billion, forty million, four hundred forty-four thousand, four hundred one".