51047 has 2 divisors, whose sum is σ = 51048. Its totient is φ = 51046.

The previous prime is 51043. The next prime is 51059. The reversal of 51047 is 74015.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51047 - 2² = 51043 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 (51043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25523 + 25524.

It is an arithmetic number, because the mean of its divisors is an integer number (25524).

2⁵¹⁰⁴⁷ is an apocalyptic number.

51047 is a deficient number, since it is larger than the sum of its proper divisors (1).

51047 is an equidigital number, since it uses as much as digits as its factorization.

51047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 51047 is about 225.9358315983. The cubic root of 51047 is about 37.0956861034.

The spelling of 51047 in words is "fifty-one thousand, forty-seven".