51343741 has 2 divisors, whose sum is σ = 51343742. Its totient is φ = 51343740.

The previous prime is 51343739. The next prime is 51343771. The reversal of 51343741 is 14734315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51179716 + 164025 = 7154^2 + 405^2 .

It is a cyclic number.

It is not a de Polignac number, because 51343741 - 2¹ = 51343739 is a prime.

Together with 51343739, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51343711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25671870 + 25671871.

It is an arithmetic number, because the mean of its divisors is an integer number (25671871).

Almost surely, 2^51343741 is an apocalyptic number.

It is an amenable number.

51343741 is a deficient number, since it is larger than the sum of its proper divisors (1).

51343741 is an equidigital number, since it uses as much as digits as its factorization.

51343741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 28.

The square root of 51343741 is about 7165.4546959701. The cubic root of 51343741 is about 371.6742750380.

The spelling of 51343741 in words is "fifty-one million, three hundred forty-three thousand, seven hundred forty-one".