51032447 has 2 divisors, whose sum is σ = 51032448. Its totient is φ = 51032446.

The previous prime is 51032441. The next prime is 51032477. The reversal of 51032447 is 74423015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51032447 - 2¹⁰ = 51031423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51032441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25516223 + 25516224.

It is an arithmetic number, because the mean of its divisors is an integer number (25516224).

Almost surely, 2^51032447 is an apocalyptic number.

51032447 is a deficient number, since it is larger than the sum of its proper divisors (1).

51032447 is an equidigital number, since it uses as much as digits as its factorization.

51032447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 51032447 is about 7143.6998117222. The cubic root of 51032447 is about 370.9216056271.

The spelling of 51032447 in words is "fifty-one million, thirty-two thousand, four hundred forty-seven".