2567667493 has 2 divisors, whose sum is σ = 2567667494. Its totient is φ = 2567667492.

The previous prime is 2567667407. The next prime is 2567667523. The reversal of 2567667493 is 3947667652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1413910404 + 1153757089 = 37602^2 + 33967^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2567667493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2567667593) 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, 1283833746 + 1283833747.

It is an arithmetic number, because the mean of its divisors is an integer number (1283833747).

Almost surely, 2^2567667493 is an apocalyptic number.

It is an amenable number.

2567667493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2567667493 is an equidigital number, since it uses as much as digits as its factorization.

2567667493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11430720, while the sum is 55.

The square root of 2567667493 is about 50672.1569799431. The cubic root of 2567667493 is about 1369.3451490562.

The spelling of 2567667493 in words is "two billion, five hundred sixty-seven million, six hundred sixty-seven thousand, four hundred ninety-three".