7256340529 has 2 divisors, whose sum is σ = 7256340530. Its totient is φ = 7256340528.

The previous prime is 7256340419. The next prime is 7256340563. The reversal of 7256340529 is 9250436527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7246606129 + 9734400 = 85127^2 + 3120^2 .

It is a cyclic number.

It is not a de Polignac number, because 7256340529 - 2¹³ = 7256332337 is a prime.

It is not a weakly prime, because it can be changed into another prime (7256340029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3628170264 + 3628170265.

It is an arithmetic number, because the mean of its divisors is an integer number (3628170265).

Almost surely, 2^7256340529 is an apocalyptic number.

It is an amenable number.

7256340529 is a deficient number, since it is larger than the sum of its proper divisors (1).

7256340529 is an equidigital number, since it uses as much as digits as its factorization.

7256340529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 43.

The square root of 7256340529 is about 85184.1565609474. The cubic root of 7256340529 is about 1936.0023721348.

The spelling of 7256340529 in words is "seven billion, two hundred fifty-six million, three hundred forty thousand, five hundred twenty-nine".