51167393 has 2 divisors, whose sum is σ = 51167394. Its totient is φ = 51167392.

The previous prime is 51167381. The next prime is 51167447. The reversal of 51167393 is 39376115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49885969 + 1281424 = 7063^2 + 1132^2 .

It is a cyclic number.

It is not a de Polignac number, because 51167393 - 2¹⁰ = 51166369 is a prime.

It is not a weakly prime, because it can be changed into another prime (51167353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25583696 + 25583697.

It is an arithmetic number, because the mean of its divisors is an integer number (25583697).

Almost surely, 2^51167393 is an apocalyptic number.

It is an amenable number.

51167393 is a deficient number, since it is larger than the sum of its proper divisors (1).

51167393 is an equidigital number, since it uses as much as digits as its factorization.

51167393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17010, while the sum is 35.

The square root of 51167393 is about 7153.1386817257. The cubic root of 51167393 is about 371.2482627164.

The spelling of 51167393 in words is "fifty-one million, one hundred sixty-seven thousand, three hundred ninety-three".