2425187081 has 2 divisors, whose sum is σ = 2425187082. Its totient is φ = 2425187080.

The previous prime is 2425187069. The next prime is 2425187099. The reversal of 2425187081 is 1807815242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1430352400 + 994834681 = 37820^2 + 31541^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2425187081 is a prime.

It is a super-2 number, since 2×2425187081² = 11763064755698601122, 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 (2425187021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1212593540 + 1212593541.

It is an arithmetic number, because the mean of its divisors is an integer number (1212593541).

Almost surely, 2^2425187081 is an apocalyptic number.

It is an amenable number.

2425187081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2425187081 is an equidigital number, since it uses as much as digits as its factorization.

2425187081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35840, while the sum is 38.

The square root of 2425187081 is about 49246.1884921057. The cubic root of 2425187081 is about 1343.5332390480.

The spelling of 2425187081 in words is "two billion, four hundred twenty-five million, one hundred eighty-seven thousand, eighty-one".