51046847 has 2 divisors, whose sum is σ = 51046848. Its totient is φ = 51046846.

The previous prime is 51046819. The next prime is 51046861. The reversal of 51046847 is 74864015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51046847 - 2¹⁶ = 50981311 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 (51046817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25523423 + 25523424.

It is an arithmetic number, because the mean of its divisors is an integer number (25523424).

Almost surely, 2^51046847 is an apocalyptic number.

51046847 is a deficient number, since it is larger than the sum of its proper divisors (1).

51046847 is an equidigital number, since it uses as much as digits as its factorization.

51046847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 51046847 is about 7144.7076217295. The cubic root of 51046847 is about 370.9564904185.

The spelling of 51046847 in words is "fifty-one million, forty-six thousand, eight hundred forty-seven".