51739841 has 2 divisors, whose sum is σ = 51739842. Its totient is φ = 51739840.

The previous prime is 51739829. The next prime is 51739847. The reversal of 51739841 is 14893715.

51739841 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., 29376400 + 22363441 = 5420^2 + 4729^2 .

It is a cyclic number.

It is not a de Polignac number, because 51739841 - 2⁶ = 51739777 is a prime.

It is a super-2 number, since 2×51739841² = 5354022293410562, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 51739795 and 51739804.

It is not a weakly prime, because it can be changed into another prime (51739847) 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, 25869920 + 25869921.

It is an arithmetic number, because the mean of its divisors is an integer number (25869921).

Almost surely, 2^51739841 is an apocalyptic number.

It is an amenable number.

51739841 is a deficient number, since it is larger than the sum of its proper divisors (1).

51739841 is an equidigital number, since it uses as much as digits as its factorization.

51739841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 38.

The square root of 51739841 is about 7193.0411510014. The cubic root of 51739841 is about 372.6276090878.

The spelling of 51739841 in words is "fifty-one million, seven hundred thirty-nine thousand, eight hundred forty-one".