55610500549 has 2 divisors, whose sum is σ = 55610500550. Its totient is φ = 55610500548.

The previous prime is 55610500541. The next prime is 55610500559. The reversal of 55610500549 is 94500501655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55416455649 + 194044900 = 235407^2 + 13930^2 .

It is a cyclic number.

It is not a de Polignac number, because 55610500549 - 2³ = 55610500541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55610500541) 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, 27805250274 + 27805250275.

It is an arithmetic number, because the mean of its divisors is an integer number (27805250275).

Almost surely, 2^55610500549 is an apocalyptic number.

It is an amenable number.

55610500549 is a deficient number, since it is larger than the sum of its proper divisors (1).

55610500549 is an equidigital number, since it uses as much as digits as its factorization.

55610500549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 55610500549 in words is "fifty-five billion, six hundred ten million, five hundred thousand, five hundred forty-nine".