2555450549 has 2 divisors, whose sum is σ = 2555450550. Its totient is φ = 2555450548.

The previous prime is 2555450519. The next prime is 2555450603. The reversal of 2555450549 is 9450545552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1567605649 + 987844900 = 39593^2 + 31430^2 .

It is a cyclic number.

It is not a de Polignac number, because 2555450549 - 2¹⁶ = 2555385013 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2555450519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277725274 + 1277725275.

It is an arithmetic number, because the mean of its divisors is an integer number (1277725275).

Almost surely, 2^2555450549 is an apocalyptic number.

It is an amenable number.

2555450549 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555450549 is an equidigital number, since it uses as much as digits as its factorization.

2555450549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900000, while the sum is 44.

The square root of 2555450549 is about 50551.4643605900. The cubic root of 2555450549 is about 1367.1699172685.

The spelling of 2555450549 in words is "two billion, five hundred fifty-five million, four hundred fifty thousand, five hundred forty-nine".