2257071547 has 2 divisors, whose sum is σ = 2257071548. Its totient is φ = 2257071546.

The previous prime is 2257071499. The next prime is 2257071587. The reversal of 2257071547 is 7451707522.

It is an a-pointer prime, because the next prime (2257071587) can be obtained adding 2257071547 to its sum of digits (40).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2257071547 is a prime.

It is not a weakly prime, because it can be changed into another prime (2257071587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128535773 + 1128535774.

It is an arithmetic number, because the mean of its divisors is an integer number (1128535774).

Almost surely, 2^2257071547 is an apocalyptic number.

2257071547 is a deficient number, since it is larger than the sum of its proper divisors (1).

2257071547 is an equidigital number, since it uses as much as digits as its factorization.

2257071547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 137200, while the sum is 40.

The square root of 2257071547 is about 47508.6470760850. The cubic root of 2257071547 is about 1311.7420537151.

The spelling of 2257071547 in words is "two billion, two hundred fifty-seven million, seventy-one thousand, five hundred forty-seven".