51979933 has 2 divisors, whose sum is σ = 51979934. Its totient is φ = 51979932.

The previous prime is 51979903. The next prime is 51979937. The reversal of 51979933 is 33997915.

51979933 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 can be written as a sum of positive squares in only one way, i.e., 32239684 + 19740249 = 5678^2 + 4443^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51979933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51979937) 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, 25989966 + 25989967.

It is an arithmetic number, because the mean of its divisors is an integer number (25989967).

Almost surely, 2^51979933 is an apocalyptic number.

It is an amenable number.

51979933 is a deficient number, since it is larger than the sum of its proper divisors (1).

51979933 is an equidigital number, since it uses as much as digits as its factorization.

51979933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 229635, while the sum is 46.

The square root of 51979933 is about 7209.7110205611. The cubic root of 51979933 is about 373.2030964906.

The spelling of 51979933 in words is "fifty-one million, nine hundred seventy-nine thousand, nine hundred thirty-three".