55280552549 has 2 divisors, whose sum is σ = 55280552550. Its totient is φ = 55280552548.

The previous prime is 55280552533. The next prime is 55280552627. The reversal of 55280552549 is 94525508255.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38027730049 + 17252822500 = 195007^2 + 131350^2 .

It is a cyclic number.

It is not a de Polignac number, because 55280552549 - 2⁴ = 55280552533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55280552497 and 55280552506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55280552849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27640276274 + 27640276275.

It is an arithmetic number, because the mean of its divisors is an integer number (27640276275).

Almost surely, 2^55280552549 is an apocalyptic number.

It is an amenable number.

55280552549 is a deficient number, since it is larger than the sum of its proper divisors (1).

55280552549 is an equidigital number, since it uses as much as digits as its factorization.

55280552549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600000, while the sum is 50.

The spelling of 55280552549 in words is "fifty-five billion, two hundred eighty million, five hundred fifty-two thousand, five hundred forty-nine".