51996937 has 2 divisors, whose sum is σ = 51996938. Its totient is φ = 51996936.

The previous prime is 51996911. The next prime is 51996943. The reversal of 51996937 is 73969915.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51322896 + 674041 = 7164^2 + 821^2 .

It is a cyclic number.

It is not a de Polignac number, because 51996937 - 2⁷ = 51996809 is a prime.

It is not a weakly prime, because it can be changed into another prime (51996907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25998468 + 25998469.

It is an arithmetic number, because the mean of its divisors is an integer number (25998469).

Almost surely, 2^51996937 is an apocalyptic number.

It is an amenable number.

51996937 is a deficient number, since it is larger than the sum of its proper divisors (1).

51996937 is an equidigital number, since it uses as much as digits as its factorization.

51996937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 459270, while the sum is 49.

The square root of 51996937 is about 7210.8901669627. The cubic root of 51996937 is about 373.2437868957.

The spelling of 51996937 in words is "fifty-one million, nine hundred ninety-six thousand, nine hundred thirty-seven".