51672371 has 2 divisors, whose sum is σ = 51672372. Its totient is φ = 51672370.

The previous prime is 51672359. The next prime is 51672389. The reversal of 51672371 is 17327615.

51672371 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51672371 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51672331) 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, 25836185 + 25836186.

It is an arithmetic number, because the mean of its divisors is an integer number (25836186).

Almost surely, 2^51672371 is an apocalyptic number.

51672371 is a deficient number, since it is larger than the sum of its proper divisors (1).

51672371 is an equidigital number, since it uses as much as digits as its factorization.

51672371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8820, while the sum is 32.

The square root of 51672371 is about 7188.3496715171. The cubic root of 51672371 is about 372.4655668365.

Adding to 51672371 its reverse (17327615), we get a palindrome (68999986).

The spelling of 51672371 in words is "fifty-one million, six hundred seventy-two thousand, three hundred seventy-one".