51782443 has 2 divisors, whose sum is σ = 51782444. Its totient is φ = 51782442.

The previous prime is 51782413. The next prime is 51782483. The reversal of 51782443 is 34428715.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51782443 - 2⁵ = 51782411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51782399 and 51782408.

It is not a weakly prime, because it can be changed into another prime (51782413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25891221 + 25891222.

It is an arithmetic number, because the mean of its divisors is an integer number (25891222).

Almost surely, 2^51782443 is an apocalyptic number.

51782443 is a deficient number, since it is larger than the sum of its proper divisors (1).

51782443 is an equidigital number, since it uses as much as digits as its factorization.

51782443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 34.

The square root of 51782443 is about 7196.0018760420. The cubic root of 51782443 is about 372.7298534838.

It can be divided in two parts, 51782 and 443, that added together give a palindrome (52225).

The spelling of 51782443 in words is "fifty-one million, seven hundred eighty-two thousand, four hundred forty-three".