47251 has 2 divisors, whose sum is σ = 47252. Its totient is φ = 47250.

The previous prime is 47237. The next prime is 47269. The reversal of 47251 is 15274.

47251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47251 - 2⁷ = 47123 is a prime.

It is not a weakly prime, because it can be changed into another prime (47221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23625 + 23626.

It is an arithmetic number, because the mean of its divisors is an integer number (23626).

2⁴⁷²⁵¹ is an apocalyptic number.

47251 is the 126-th hex number.

47251 is a deficient number, since it is larger than the sum of its proper divisors (1).

47251 is an equidigital number, since it uses as much as digits as its factorization.

47251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 280, while the sum is 19.

The square root of 47251 is about 217.3729513992. The cubic root of 47251 is about 36.1523890023.

Subtracting from 47251 its product of digits (280), we obtain a triangular number (46971 = T₃₀₆).

The spelling of 47251 in words is "forty-seven thousand, two hundred fifty-one".