5440122251 has 2 divisors, whose sum is σ = 5440122252. Its totient is φ = 5440122250.

The previous prime is 5440122223. The next prime is 5440122257. The reversal of 5440122251 is 1522210445.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5440122251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5440122251.

It is not a weakly prime, because it can be changed into another prime (5440122257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2720061125 + 2720061126.

It is an arithmetic number, because the mean of its divisors is an integer number (2720061126).

Almost surely, 2^5440122251 is an apocalyptic number.

5440122251 is a deficient number, since it is larger than the sum of its proper divisors (1).

5440122251 is an equidigital number, since it uses as much as digits as its factorization.

5440122251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 5440122251 is about 73757.1844026058. The cubic root of 5440122251 is about 1758.7450431966.

Adding to 5440122251 its reverse (1522210445), we get a palindrome (6962332696).

The spelling of 5440122251 in words is "five billion, four hundred forty million, one hundred twenty-two thousand, two hundred fifty-one".