51203071 has 2 divisors, whose sum is σ = 51203072. Its totient is φ = 51203070.

The previous prime is 51203063. The next prime is 51203111. The reversal of 51203071 is 17030215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51203071 - 2³ = 51203063 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51203171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25601535 + 25601536.

It is an arithmetic number, because the mean of its divisors is an integer number (25601536).

Almost surely, 2^51203071 is an apocalyptic number.

51203071 is a deficient number, since it is larger than the sum of its proper divisors (1).

51203071 is an equidigital number, since it uses as much as digits as its factorization.

51203071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 51203071 is about 7155.6321174303. The cubic root of 51203071 is about 371.3345306652.

Adding to 51203071 its reverse (17030215), we get a palindrome (68233286).

The spelling of 51203071 in words is "fifty-one million, two hundred three thousand, seventy-one".