51411211 has 2 divisors, whose sum is σ = 51411212. Its totient is φ = 51411210.

The previous prime is 51411209. The next prime is 51411223. The reversal of 51411211 is 11211415.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51411211 - 2¹ = 51411209 is a prime.

It is a super-2 number, since 2×51411211² = 5286225232973042, which contains 22 as substring.

Together with 51411209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (51111211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25705605 + 25705606.

It is an arithmetic number, because the mean of its divisors is an integer number (25705606).

Almost surely, 2^51411211 is an apocalyptic number.

51411211 is a deficient number, since it is larger than the sum of its proper divisors (1).

51411211 is an equidigital number, since it uses as much as digits as its factorization.

51411211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40, while the sum is 16.

The square root of 51411211 is about 7170.1611557900. The cubic root of 51411211 is about 371.8370075444.

Adding to 51411211 its reverse (11211415), we get a palindrome (62622626).

The spelling of 51411211 in words is "fifty-one million, four hundred eleven thousand, two hundred eleven".