53417251 has 2 divisors, whose sum is σ = 53417252. Its totient is φ = 53417250.

The previous prime is 53417249. The next prime is 53417261. The reversal of 53417251 is 15271435.

It is a happy number.

53417251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53417251 - 2¹ = 53417249 is a prime.

Together with 53417249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (53417261) 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, 26708625 + 26708626.

It is an arithmetic number, because the mean of its divisors is an integer number (26708626).

Almost surely, 2^53417251 is an apocalyptic number.

53417251 is a deficient number, since it is larger than the sum of its proper divisors (1).

53417251 is an equidigital number, since it uses as much as digits as its factorization.

53417251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4200, while the sum is 28.

The square root of 53417251 is about 7308.7106250008. The cubic root of 53417251 is about 376.6117319664.

Adding to 53417251 its reverse (15271435), we get a palindrome (68688686).

The spelling of 53417251 in words is "fifty-three million, four hundred seventeen thousand, two hundred fifty-one".