51863351 has 2 divisors, whose sum is σ = 51863352. Its totient is φ = 51863350.

The previous prime is 51863347. The next prime is 51863363. The reversal of 51863351 is 15336815.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51863351 - 2² = 51863347 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51866351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25931675 + 25931676.

It is an arithmetic number, because the mean of its divisors is an integer number (25931676).

Almost surely, 2^51863351 is an apocalyptic number.

51863351 is a deficient number, since it is larger than the sum of its proper divisors (1).

51863351 is an equidigital number, since it uses as much as digits as its factorization.

51863351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 32.

The square root of 51863351 is about 7201.6214146538. The cubic root of 51863351 is about 372.9238776394.

The spelling of 51863351 in words is "fifty-one million, eight hundred sixty-three thousand, three hundred fifty-one".