51192643 has 2 divisors, whose sum is σ = 51192644. Its totient is φ = 51192642.

The previous prime is 51192629. The next prime is 51192649. The reversal of 51192643 is 34629115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51192643 - 2⁵ = 51192611 is a prime.

It is not a weakly prime, because it can be changed into another prime (51192649) 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, 25596321 + 25596322.

It is an arithmetic number, because the mean of its divisors is an integer number (25596322).

Almost surely, 2^51192643 is an apocalyptic number.

51192643 is a deficient number, since it is larger than the sum of its proper divisors (1).

51192643 is an equidigital number, since it uses as much as digits as its factorization.

51192643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 31.

The square root of 51192643 is about 7154.9034235271. The cubic root of 51192643 is about 371.3093203324.

The spelling of 51192643 in words is "fifty-one million, one hundred ninety-two thousand, six hundred forty-three".