51319841 has 2 divisors, whose sum is σ = 51319842. Its totient is φ = 51319840.

The previous prime is 51319819. The next prime is 51319859. The reversal of 51319841 is 14891315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48094225 + 3225616 = 6935^2 + 1796^2 .

It is a cyclic number.

It is not a de Polignac number, because 51319841 - 2¹⁴ = 51303457 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 51319798 and 51319807.

It is not a weakly prime, because it can be changed into another prime (51310841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25659920 + 25659921.

It is an arithmetic number, because the mean of its divisors is an integer number (25659921).

Almost surely, 2^51319841 is an apocalyptic number.

It is an amenable number.

51319841 is a deficient number, since it is larger than the sum of its proper divisors (1).

51319841 is an equidigital number, since it uses as much as digits as its factorization.

51319841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 32.

The square root of 51319841 is about 7163.7867779548. The cubic root of 51319841 is about 371.6165958631.

The spelling of 51319841 in words is "fifty-one million, three hundred nineteen thousand, eight hundred forty-one".