51033317 has 2 divisors, whose sum is σ = 51033318. Its totient is φ = 51033316.

The previous prime is 51033313. The next prime is 51033331. The reversal of 51033317 is 71333015.

It is a happy number.

51033317 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 can be written as a sum of positive squares in only one way, i.e., 27520516 + 23512801 = 5246^2 + 4849^2 .

It is a cyclic number.

It is not a de Polignac number, because 51033317 - 2² = 51033313 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 51033292 and 51033301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51033313) 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, 25516658 + 25516659.

It is an arithmetic number, because the mean of its divisors is an integer number (25516659).

Almost surely, 2^51033317 is an apocalyptic number.

It is an amenable number.

51033317 is a deficient number, since it is larger than the sum of its proper divisors (1).

51033317 is an equidigital number, since it uses as much as digits as its factorization.

51033317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 945, while the sum is 23.

The square root of 51033317 is about 7143.7607042789. The cubic root of 51033317 is about 370.9237134361.

The spelling of 51033317 in words is "fifty-one million, thirty-three thousand, three hundred seventeen".