51467791 has 2 divisors, whose sum is σ = 51467792. Its totient is φ = 51467790.

The previous prime is 51467783. The next prime is 51467831. The reversal of 51467791 is 19776415.

It is an a-pointer prime, because the next prime (51467831) can be obtained adding 51467791 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51467791 - 2³ = 51467783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51467711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25733895 + 25733896.

It is an arithmetic number, because the mean of its divisors is an integer number (25733896).

Almost surely, 2^51467791 is an apocalyptic number.

51467791 is a deficient number, since it is larger than the sum of its proper divisors (1).

51467791 is an equidigital number, since it uses as much as digits as its factorization.

51467791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 40.

The square root of 51467791 is about 7174.1055888522. The cubic root of 51467791 is about 371.9733644744.

The spelling of 51467791 in words is "fifty-one million, four hundred sixty-seven thousand, seven hundred ninety-one".