51494467 has 2 divisors, whose sum is σ = 51494468. Its totient is φ = 51494466.

The previous prime is 51494461. The next prime is 51494477. The reversal of 51494467 is 76449415.

51494467 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51494467 - 2¹⁵ = 51461699 is a prime.

It is a super-2 number, since 2×51494467² = 5303360263228178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51494461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25747233 + 25747234.

It is an arithmetic number, because the mean of its divisors is an integer number (25747234).

Almost surely, 2^51494467 is an apocalyptic number.

51494467 is a deficient number, since it is larger than the sum of its proper divisors (1).

51494467 is an equidigital number, since it uses as much as digits as its factorization.

51494467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 51494467 is about 7175.9645344720. The cubic root of 51494467 is about 372.0376185605.

The spelling of 51494467 in words is "fifty-one million, four hundred ninety-four thousand, four hundred sixty-seven".