2550440257 has 2 divisors, whose sum is σ = 2550440258. Its totient is φ = 2550440256.

The previous prime is 2550440227. The next prime is 2550440267. The reversal of 2550440257 is 7520440552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2148878736 + 401561521 = 46356^2 + 20039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2550440257 is a prime.

It is not a weakly prime, because it can be changed into another prime (2550440227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275220128 + 1275220129.

It is an arithmetic number, because the mean of its divisors is an integer number (1275220129).

Almost surely, 2^2550440257 is an apocalyptic number.

It is an amenable number.

2550440257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2550440257 is an equidigital number, since it uses as much as digits as its factorization.

2550440257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56000, while the sum is 34.

The square root of 2550440257 is about 50501.8836975414. The cubic root of 2550440257 is about 1366.2758280829.

The spelling of 2550440257 in words is "two billion, five hundred fifty million, four hundred forty thousand, two hundred fifty-seven".