25389100605079 has 4 divisors (see below), whose sum is σ = 25650843910384. Its totient is φ = 25127357299776.

The previous prime is 25389100605053. The next prime is 25389100605091. The reversal of 25389100605079 is 97050600198352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25389100605079 - 2³⁵ = 25354740866711 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 (25389100645079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130871652507 + ... + 130871652700.

It is an arithmetic number, because the mean of its divisors is an integer number (6412710977596).

Almost surely, 2^{25389100605079} is an apocalyptic number.

25389100605079 is a deficient number, since it is larger than the sum of its proper divisors (261743305305).

25389100605079 is an equidigital number, since it uses as much as digits as its factorization.

25389100605079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261743305304.

The product of its (nonzero) digits is 4082400, while the sum is 55.

The spelling of 25389100605079 in words is "twenty-five trillion, three hundred eighty-nine billion, one hundred million, six hundred five thousand, seventy-nine".