55113305449 has 2 divisors, whose sum is σ = 55113305450. Its totient is φ = 55113305448.

The previous prime is 55113305441. The next prime is 55113305561. The reversal of 55113305449 is 94450331155.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53248793049 + 1864512400 = 230757^2 + 43180^2 .

It is a cyclic number.

It is not a de Polignac number, because 55113305449 - 2³ = 55113305441 is a prime.

It is not a weakly prime, because it can be changed into another prime (55113305441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27556652724 + 27556652725.

It is an arithmetic number, because the mean of its divisors is an integer number (27556652725).

Almost surely, 2^55113305449 is an apocalyptic number.

It is an amenable number.

55113305449 is a deficient number, since it is larger than the sum of its proper divisors (1).

55113305449 is an equidigital number, since it uses as much as digits as its factorization.

55113305449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 55113305449 in words is "fifty-five billion, one hundred thirteen million, three hundred five thousand, four hundred forty-nine".