25285958629 has 2 divisors, whose sum is σ = 25285958630. Its totient is φ = 25285958628.

The previous prime is 25285958611. The next prime is 25285958639. The reversal of 25285958629 is 92685958252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20620385604 + 4665573025 = 143598^2 + 68305^2 .

It is a cyclic number.

It is not a de Polignac number, because 25285958629 - 2⁵ = 25285958597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25285958639) 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, 12642979314 + 12642979315.

It is an arithmetic number, because the mean of its divisors is an integer number (12642979315).

Almost surely, 2^25285958629 is an apocalyptic number.

It is an amenable number.

25285958629 is a deficient number, since it is larger than the sum of its proper divisors (1).

25285958629 is an equidigital number, since it uses as much as digits as its factorization.

25285958629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104000, while the sum is 61.

The spelling of 25285958629 in words is "twenty-five billion, two hundred eighty-five million, nine hundred fifty-eight thousand, six hundred twenty-nine".