51001303 has 2 divisors, whose sum is σ = 51001304. Its totient is φ = 51001302.

The previous prime is 51001297. The next prime is 51001367. The reversal of 51001303 is 30310015.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51001303 is a prime.

It is a super-2 number, since 2×51001303² = 5202265815395618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51071303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25500651 + 25500652.

It is an arithmetic number, because the mean of its divisors is an integer number (25500652).

Almost surely, 2^51001303 is an apocalyptic number.

51001303 is a deficient number, since it is larger than the sum of its proper divisors (1).

51001303 is an equidigital number, since it uses as much as digits as its factorization.

51001303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45, while the sum is 13.

The square root of 51001303 is about 7141.5196562076. The cubic root of 51001303 is about 370.8461351246.

Adding to 51001303 its reverse (30310015), we get a palindrome (81311318).

The spelling of 51001303 in words is "fifty-one million, one thousand, three hundred three".