51044443 has 2 divisors, whose sum is σ = 51044444. Its totient is φ = 51044442.

The previous prime is 51044417. The next prime is 51044449. The reversal of 51044443 is 34444015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51044443 - 2¹⁷ = 50913371 is a prime.

It is a super-2 number, since 2×51044443² = 5211070322360498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51044449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25522221 + 25522222.

It is an arithmetic number, because the mean of its divisors is an integer number (25522222).

Almost surely, 2^51044443 is an apocalyptic number.

51044443 is a deficient number, since it is larger than the sum of its proper divisors (1).

51044443 is an equidigital number, since it uses as much as digits as its factorization.

51044443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 51044443 is about 7144.5393833333. The cubic root of 51044443 is about 370.9506670526.

Adding to 51044443 its reverse (34444015), we get a palindrome (85488458).

The spelling of 51044443 in words is "fifty-one million, forty-four thousand, four hundred forty-three".