47427251 has 2 divisors, whose sum is σ = 47427252. Its totient is φ = 47427250.

The previous prime is 47427239. The next prime is 47427257. The reversal of 47427251 is 15272474.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47427251 - 2²² = 43232947 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47427257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23713625 + 23713626.

It is an arithmetic number, because the mean of its divisors is an integer number (23713626).

Almost surely, 2^47427251 is an apocalyptic number.

47427251 is a deficient number, since it is larger than the sum of its proper divisors (1).

47427251 is an equidigital number, since it uses as much as digits as its factorization.

47427251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15680, while the sum is 32.

The square root of 47427251 is about 6886.7445865227. The cubic root of 47427251 is about 361.9728391453.

The spelling of 47427251 in words is "forty-seven million, four hundred twenty-seven thousand, two hundred fifty-one".