47256257 has 2 divisors, whose sum is σ = 47256258. Its totient is φ = 47256256.

The previous prime is 47256199. The next prime is 47256271. The reversal of 47256257 is 75265274.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46799281 + 456976 = 6841^2 + 676^2 .

It is a cyclic number.

It is not a de Polignac number, because 47256257 - 2¹⁰ = 47255233 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47256257.

It is not a weakly prime, because it can be changed into another prime (47256757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23628128 + 23628129.

It is an arithmetic number, because the mean of its divisors is an integer number (23628129).

Almost surely, 2^47256257 is an apocalyptic number.

It is an amenable number.

47256257 is a deficient number, since it is larger than the sum of its proper divisors (1).

47256257 is an equidigital number, since it uses as much as digits as its factorization.

47256257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117600, while the sum is 38.

The square root of 47256257 is about 6874.3186571470. The cubic root of 47256257 is about 361.5372968692.

The spelling of 47256257 in words is "forty-seven million, two hundred fifty-six thousand, two hundred fifty-seven".