51340837 has 2 divisors, whose sum is σ = 51340838. Its totient is φ = 51340836.

The previous prime is 51340829. The next prime is 51340843. The reversal of 51340837 is 73804315.

51340837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28740321 + 22600516 = 5361^2 + 4754^2 .

It is a cyclic number.

It is not a de Polignac number, because 51340837 - 2³ = 51340829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51340799 and 51340808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51340537) 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, 25670418 + 25670419.

It is an arithmetic number, because the mean of its divisors is an integer number (25670419).

Almost surely, 2^51340837 is an apocalyptic number.

It is an amenable number.

51340837 is a deficient number, since it is larger than the sum of its proper divisors (1).

51340837 is an equidigital number, since it uses as much as digits as its factorization.

51340837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 51340837 is about 7165.2520541848. The cubic root of 51340837 is about 371.6672676117.

The spelling of 51340837 in words is "fifty-one million, three hundred forty thousand, eight hundred thirty-seven".