51439411 has 2 divisors, whose sum is σ = 51439412. Its totient is φ = 51439410.

The previous prime is 51439393. The next prime is 51439439. The reversal of 51439411 is 11493415.

51439411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (51439439) can be obtained adding 51439411 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51439411 - 2⁹ = 51438899 is a prime.

It is a super-3 number, since 3×51439411³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51439411.

It is not a weakly prime, because it can be changed into another prime (51439471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25719705 + 25719706.

It is an arithmetic number, because the mean of its divisors is an integer number (25719706).

Almost surely, 2^51439411 is an apocalyptic number.

51439411 is a deficient number, since it is larger than the sum of its proper divisors (1).

51439411 is an equidigital number, since it uses as much as digits as its factorization.

51439411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 28.

The square root of 51439411 is about 7172.1273691981. The cubic root of 51439411 is about 371.9049816093.

The spelling of 51439411 in words is "fifty-one million, four hundred thirty-nine thousand, four hundred eleven".