51010511 has 2 divisors, whose sum is σ = 51010512. Its totient is φ = 51010510.

The previous prime is 51010499. The next prime is 51010541. The reversal of 51010511 is 11501015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51010511 - 2¹⁴ = 50994127 is a prime.

It is a super-2 number, since 2×51010511² = 5204144464962242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51010541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25505255 + 25505256.

It is an arithmetic number, because the mean of its divisors is an integer number (25505256).

Almost surely, 2^51010511 is an apocalyptic number.

51010511 is a deficient number, since it is larger than the sum of its proper divisors (1).

51010511 is an equidigital number, since it uses as much as digits as its factorization.

51010511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25, while the sum is 14.

The square root of 51010511 is about 7142.1643078271. The cubic root of 51010511 is about 370.8684518467.

Adding to 51010511 its reverse (11501015), we get a palindrome (62511526).

The spelling of 51010511 in words is "fifty-one million, ten thousand, five hundred eleven".