2257547 has 2 divisors, whose sum is σ = 2257548. Its totient is φ = 2257546.

The previous prime is 2257531. The next prime is 2257553. The reversal of 2257547 is 7457522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2257547 - 2⁴ = 2257531 is a prime.

It is not a weakly prime, because it can be changed into another prime (2257597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128773 + 1128774.

It is an arithmetic number, because the mean of its divisors is an integer number (1128774).

2^2257547 is an apocalyptic number.

2257547 is a deficient number, since it is larger than the sum of its proper divisors (1).

2257547 is an equidigital number, since it uses as much as digits as its factorization.

2257547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19600, while the sum is 32.

The square root of 2257547 is about 1502.5135606709. The cubic root of 2257547 is about 131.1834153573.

It can be divided in two parts, 22575 and 47, that added together give a palindrome (22622).

The spelling of 2257547 in words is "two million, two hundred fifty-seven thousand, five hundred forty-seven".