2550449137 has 2 divisors, whose sum is σ = 2550449138. Its totient is φ = 2550449136.

The previous prime is 2550449131. The next prime is 2550449147. The reversal of 2550449137 is 7319440552.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2374515441 + 175933696 = 48729^2 + 13264^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2550449137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2550449137.

It is not a weakly prime, because it can be changed into another prime (2550449131) 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, 1275224568 + 1275224569.

It is an arithmetic number, because the mean of its divisors is an integer number (1275224569).

Almost surely, 2^2550449137 is an apocalyptic number.

It is an amenable number.

2550449137 is a deficient number, since it is larger than the sum of its proper divisors (1).

2550449137 is an equidigital number, since it uses as much as digits as its factorization.

2550449137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 2550449137 is about 50501.9716149776. The cubic root of 2550449137 is about 1366.2774137588.

Adding to 2550449137 its reverse (7319440552), we get a palindrome (9869889689).

The spelling of 2550449137 in words is "two billion, five hundred fifty million, four hundred forty-nine thousand, one hundred thirty-seven".