55995489449 has 2 divisors, whose sum is σ = 55995489450. Its totient is φ = 55995489448.

The previous prime is 55995489413. The next prime is 55995489469. The reversal of 55995489449 is 94498459955.

55995489449 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., 47191045225 + 8804444224 = 217235^2 + 93832^2 .

It is a cyclic number.

It is not a de Polignac number, because 55995489449 - 2¹² = 55995485353 is a prime.

It is not a weakly prime, because it can be changed into another prime (55995489409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27997744724 + 27997744725.

It is an arithmetic number, because the mean of its divisors is an integer number (27997744725).

Almost surely, 2^55995489449 is an apocalyptic number.

It is an amenable number.

55995489449 is a deficient number, since it is larger than the sum of its proper divisors (1).

55995489449 is an equidigital number, since it uses as much as digits as its factorization.

55995489449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904000, while the sum is 71.

The spelling of 55995489449 in words is "fifty-five billion, nine hundred ninety-five million, four hundred eighty-nine thousand, four hundred forty-nine".