2425508681 has 2 divisors, whose sum is σ = 2425508682. Its totient is φ = 2425508680.

The previous prime is 2425508671. The next prime is 2425508747. The reversal of 2425508681 is 1868055242.

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., 2379878656 + 45630025 = 48784^2 + 6755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2425508681 is a prime.

It is a super-2 number, since 2×2425508681² = 11766184723212719522, which 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 (2425508671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1212754340 + 1212754341.

It is an arithmetic number, because the mean of its divisors is an integer number (1212754341).

Almost surely, 2^2425508681 is an apocalyptic number.

It is an amenable number.

2425508681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2425508681 is an equidigital number, since it uses as much as digits as its factorization.

2425508681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 153600, while the sum is 41.

The square root of 2425508681 is about 49249.4536111823. The cubic root of 2425508681 is about 1343.5926243211.

The spelling of 2425508681 in words is "two billion, four hundred twenty-five million, five hundred eight thousand, six hundred eighty-one".