2257701247 has 2 divisors, whose sum is σ = 2257701248. Its totient is φ = 2257701246.

The previous prime is 2257701221. The next prime is 2257701323. The reversal of 2257701247 is 7421077522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2257701247 - 2⁷ = 2257701119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2257701547) 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, 1128850623 + 1128850624.

It is an arithmetic number, because the mean of its divisors is an integer number (1128850624).

Almost surely, 2^2257701247 is an apocalyptic number.

2257701247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2257701247 is an equidigital number, since it uses as much as digits as its factorization.

2257701247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54880, while the sum is 37.

The square root of 2257701247 is about 47515.2738285280. The cubic root of 2257701247 is about 1311.8640299352.

Adding to 2257701247 its reverse (7421077522), we get a palindrome (9678778769).

The spelling of 2257701247 in words is "two billion, two hundred fifty-seven million, seven hundred one thousand, two hundred forty-seven".