51672899 has 2 divisors, whose sum is σ = 51672900. Its totient is φ = 51672898.

The previous prime is 51672889. The next prime is 51672931. The reversal of 51672899 is 99827615.

51672899 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 not a de Polignac number, because 51672899 - 2⁴ = 51672883 is a prime.

It is not a weakly prime, because it can be changed into another prime (51672839) 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, 25836449 + 25836450.

It is an arithmetic number, because the mean of its divisors is an integer number (25836450).

Almost surely, 2^51672899 is an apocalyptic number.

51672899 is a deficient number, since it is larger than the sum of its proper divisors (1).

51672899 is an equidigital number, since it uses as much as digits as its factorization.

51672899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 47.

The square root of 51672899 is about 7188.3863975165. The cubic root of 51672899 is about 372.4668354781.

The spelling of 51672899 in words is "fifty-one million, six hundred seventy-two thousand, eight hundred ninety-nine".