51029443 has 2 divisors, whose sum is σ = 51029444. Its totient is φ = 51029442.

The previous prime is 51029417. The next prime is 51029449. The reversal of 51029443 is 34492015.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51029443 is a prime.

It is not a weakly prime, because it can be changed into another prime (51029449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25514721 + 25514722.

It is an arithmetic number, because the mean of its divisors is an integer number (25514722).

Almost surely, 2^51029443 is an apocalyptic number.

51029443 is a deficient number, since it is larger than the sum of its proper divisors (1).

51029443 is an equidigital number, since it uses as much as digits as its factorization.

51029443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 51029443 is about 7143.4895534326. The cubic root of 51029443 is about 370.9143274447.

The spelling of 51029443 in words is "fifty-one million, twenty-nine thousand, four hundred forty-three".