47054257 has 2 divisors, whose sum is σ = 47054258. Its totient is φ = 47054256.

The previous prime is 47054239. The next prime is 47054261. The reversal of 47054257 is 75245074.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40908816 + 6145441 = 6396^2 + 2479^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47054257 is a prime.

It is not a weakly prime, because it can be changed into another prime (47054237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23527128 + 23527129.

It is an arithmetic number, because the mean of its divisors is an integer number (23527129).

Almost surely, 2^47054257 is an apocalyptic number.

It is an amenable number.

47054257 is a deficient number, since it is larger than the sum of its proper divisors (1).

47054257 is an equidigital number, since it uses as much as digits as its factorization.

47054257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 47054257 is about 6859.6105574588. The cubic root of 47054257 is about 361.0214227509.

The spelling of 47054257 in words is "forty-seven million, fifty-four thousand, two hundred fifty-seven".