25529875829 has 2 divisors, whose sum is σ = 25529875830. Its totient is φ = 25529875828.

The previous prime is 25529875799. The next prime is 25529875837. The reversal of 25529875829 is 92857892552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19516648804 + 6013227025 = 139702^2 + 77545^2 .

It is a cyclic number.

It is not a de Polignac number, because 25529875829 - 2³² = 21234908533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25529875529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12764937914 + 12764937915.

It is an arithmetic number, because the mean of its divisors is an integer number (12764937915).

Almost surely, 2^25529875829 is an apocalyptic number.

It is an amenable number.

25529875829 is a deficient number, since it is larger than the sum of its proper divisors (1).

25529875829 is an equidigital number, since it uses as much as digits as its factorization.

25529875829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288000, while the sum is 62.

The spelling of 25529875829 in words is "twenty-five billion, five hundred twenty-nine million, eight hundred seventy-five thousand, eight hundred twenty-nine".