25529530079 has 8 divisors (see below), whose sum is σ = 25735857840. Its totient is φ = 25323376000.

The previous prime is 25529530049. The next prime is 25529530127. The reversal of 25529530079 is 97003592552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25529530079 - 2²⁸ = 25261094623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25529530049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260279 + ... + 344679.

It is an arithmetic number, because the mean of its divisors is an integer number (3216982230).

Almost surely, 2^25529530079 is an apocalyptic number.

25529530079 is a deficient number, since it is larger than the sum of its proper divisors (206327761).

25529530079 is a wasteful number, since it uses less digits than its factorization.

25529530079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86841.

The product of its (nonzero) digits is 850500, while the sum is 47.

The spelling of 25529530079 in words is "twenty-five billion, five hundred twenty-nine million, five hundred thirty thousand, seventy-nine".