5210240251 has 2 divisors, whose sum is σ = 5210240252. Its totient is φ = 5210240250.

The previous prime is 5210240239. The next prime is 5210240317. The reversal of 5210240251 is 1520420125.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5210240251 - 2¹³ = 5210232059 is a prime.

It is not a weakly prime, because it can be changed into another prime (5210240351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2605120125 + 2605120126.

It is an arithmetic number, because the mean of its divisors is an integer number (2605120126).

Almost surely, 2^5210240251 is an apocalyptic number.

5210240251 is a deficient number, since it is larger than the sum of its proper divisors (1).

5210240251 is an equidigital number, since it uses as much as digits as its factorization.

5210240251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 5210240251 is about 72181.9939527858. The cubic root of 5210240251 is about 1733.6147093219.

Adding to 5210240251 its reverse (1520420125), we get a palindrome (6730660376).

The spelling of 5210240251 in words is "five billion, two hundred ten million, two hundred forty thousand, two hundred fifty-one".