51834493 has 2 divisors, whose sum is σ = 51834494. Its totient is φ = 51834492.

The previous prime is 51834491. The next prime is 51834499. The reversal of 51834493 is 39443815.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51236964 + 597529 = 7158^2 + 773^2 .

It is a cyclic number.

It is not a de Polignac number, because 51834493 - 2¹ = 51834491 is a prime.

Together with 51834491, 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 (51834491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25917246 + 25917247.

It is an arithmetic number, because the mean of its divisors is an integer number (25917247).

Almost surely, 2^51834493 is an apocalyptic number.

It is an amenable number.

51834493 is a deficient number, since it is larger than the sum of its proper divisors (1).

51834493 is an equidigital number, since it uses as much as digits as its factorization.

51834493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 37.

The square root of 51834493 is about 7199.6175592874. The cubic root of 51834493 is about 372.8546969063.

The spelling of 51834493 in words is "fifty-one million, eight hundred thirty-four thousand, four hundred ninety-three".