51245371 has 2 divisors, whose sum is σ = 51245372. Its totient is φ = 51245370.

The previous prime is 51245339. The next prime is 51245377. The reversal of 51245371 is 17354215.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51245371 - 2⁵ = 51245339 is a prime.

It is not a weakly prime, because it can be changed into another prime (51245377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25622685 + 25622686.

It is an arithmetic number, because the mean of its divisors is an integer number (25622686).

Almost surely, 2^51245371 is an apocalyptic number.

51245371 is a deficient number, since it is larger than the sum of its proper divisors (1).

51245371 is an equidigital number, since it uses as much as digits as its factorization.

51245371 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 51245371 is about 7158.5872209536. The cubic root of 51245371 is about 371.4367584346.

Adding to 51245371 its reverse (17354215), we get a palindrome (68599586).

The spelling of 51245371 in words is "fifty-one million, two hundred forty-five thousand, three hundred seventy-one".