51322559 has 2 divisors, whose sum is σ = 51322560. Its totient is φ = 51322558.

The previous prime is 51322519. The next prime is 51322571. The reversal of 51322559 is 95522315.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51322559 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51322519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25661279 + 25661280.

It is an arithmetic number, because the mean of its divisors is an integer number (25661280).

Almost surely, 2^51322559 is an apocalyptic number.

51322559 is a deficient number, since it is larger than the sum of its proper divisors (1).

51322559 is an equidigital number, since it uses as much as digits as its factorization.

51322559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13500, while the sum is 32.

The square root of 51322559 is about 7163.9764795817. The cubic root of 51322559 is about 371.6231562633.

The spelling of 51322559 in words is "fifty-one million, three hundred twenty-two thousand, five hundred fifty-nine".