51595919 has 2 divisors, whose sum is σ = 51595920. Its totient is φ = 51595918.

The previous prime is 51595897. The next prime is 51595933. The reversal of 51595919 is 91959515.

It is a happy number.

51595919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51595919 - 2¹² = 51591823 is a prime.

It is a super-2 number, since 2×51595919² = 5324277714909122, which contains 22 as substring.

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 51595919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51595979) 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, 25797959 + 25797960.

It is an arithmetic number, because the mean of its divisors is an integer number (25797960).

Almost surely, 2^51595919 is an apocalyptic number.

51595919 is a deficient number, since it is larger than the sum of its proper divisors (1).

51595919 is an equidigital number, since it uses as much as digits as its factorization.

51595919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 91125, while the sum is 44.

The square root of 51595919 is about 7183.0299317210. The cubic root of 51595919 is about 372.2817820124.

The spelling of 51595919 in words is "fifty-one million, five hundred ninety-five thousand, nine hundred nineteen".