51432911 has 2 divisors, whose sum is σ = 51432912. Its totient is φ = 51432910.

The previous prime is 51432907. The next prime is 51432917. The reversal of 51432911 is 11923415.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51432911 - 2² = 51432907 is a 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 (51432917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25716455 + 25716456.

It is an arithmetic number, because the mean of its divisors is an integer number (25716456).

Almost surely, 2^51432911 is an apocalyptic number.

51432911 is a deficient number, since it is larger than the sum of its proper divisors (1).

51432911 is an equidigital number, since it uses as much as digits as its factorization.

51432911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 26.

The square root of 51432911 is about 7171.6742117863. The cubic root of 51432911 is about 371.8893160320.

The spelling of 51432911 in words is "fifty-one million, four hundred thirty-two thousand, nine hundred eleven".