51322571 has 2 divisors, whose sum is σ = 51322572. Its totient is φ = 51322570.

The previous prime is 51322559. The next prime is 51322573. The reversal of 51322571 is 17522315.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51322571 is a prime.

Together with 51322573, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51322571.

It is not a weakly prime, because it can be changed into another prime (51322573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25661285 + 25661286.

It is an arithmetic number, because the mean of its divisors is an integer number (25661286).

Almost surely, 2^51322571 is an apocalyptic number.

51322571 is a deficient number, since it is larger than the sum of its proper divisors (1).

51322571 is an equidigital number, since it uses as much as digits as its factorization.

51322571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2100, while the sum is 26.

The square root of 51322571 is about 7163.9773171054. The cubic root of 51322571 is about 371.6231852270.

Adding to 51322571 its reverse (17522315), we get a palindrome (68844886).

The spelling of 51322571 in words is "fifty-one million, three hundred twenty-two thousand, five hundred seventy-one".