25234458617 has 2 divisors, whose sum is σ = 25234458618. Its totient is φ = 25234458616.

The previous prime is 25234458607. The next prime is 25234458629. The reversal of 25234458617 is 71685443252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18448158976 + 6786299641 = 135824^2 + 82379^2 .

It is a cyclic number.

It is not a de Polignac number, because 25234458617 - 2⁶ = 25234458553 is a prime.

It is a super-3 number, since 3×25234458617³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (25234458607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12617229308 + 12617229309.

It is an arithmetic number, because the mean of its divisors is an integer number (12617229309).

Almost surely, 2^25234458617 is an apocalyptic number.

It is an amenable number.

25234458617 is a deficient number, since it is larger than the sum of its proper divisors (1).

25234458617 is an equidigital number, since it uses as much as digits as its factorization.

25234458617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1612800, while the sum is 47.

The spelling of 25234458617 in words is "twenty-five billion, two hundred thirty-four million, four hundred fifty-eight thousand, six hundred seventeen".