2306540025281 has 2 divisors, whose sum is σ = 2306540025282. Its totient is φ = 2306540025280.

The previous prime is 2306540025271. The next prime is 2306540025329. The reversal of 2306540025281 is 1825200456032.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2257758677056 + 48781348225 = 1502584^2 + 220865^2 .

It is a cyclic number.

It is not a de Polignac number, because 2306540025281 - 2⁶ = 2306540025217 is a prime.

It is a super-2 number, since 2×2306540025281² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2306540025271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1153270012640 + 1153270012641.

It is an arithmetic number, because the mean of its divisors is an integer number (1153270012641).

Almost surely, 2^{2306540025281} is an apocalyptic number.

It is an amenable number.

2306540025281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2306540025281 is an equidigital number, since it uses as much as digits as its factorization.

2306540025281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 2306540025281 in words is "two trillion, three hundred six billion, five hundred forty million, twenty-five thousand, two hundred eighty-one".