25625674757 has 2 divisors, whose sum is σ = 25625674758. Its totient is φ = 25625674756.

The previous prime is 25625674729. The next prime is 25625674759. The reversal of 25625674757 is 75747652652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16005792196 + 9619882561 = 126514^2 + 98081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25625674757 is a prime.

Together with 25625674759, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25625674759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12812837378 + 12812837379.

It is an arithmetic number, because the mean of its divisors is an integer number (12812837379).

Almost surely, 2^25625674757 is an apocalyptic number.

It is an amenable number.

25625674757 is a deficient number, since it is larger than the sum of its proper divisors (1).

25625674757 is an equidigital number, since it uses as much as digits as its factorization.

25625674757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24696000, while the sum is 56.

The spelling of 25625674757 in words is "twenty-five billion, six hundred twenty-five million, six hundred seventy-four thousand, seven hundred fifty-seven".