25566028591279 has 8 divisors (see below), whose sum is σ = 27890283238272. Its totient is φ = 23241785649240.

The previous prime is 25566028591267. The next prime is 25566028591283. The reversal of 25566028591279 is 97219582066552.

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 25566028591279 - 2⁴³ = 16769935569071 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 (25566028591079) 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, 2001552 + ... + 7425514.

It is an arithmetic number, because the mean of its divisors is an integer number (3486285404784).

Almost surely, 2^{25566028591279} is an apocalyptic number.

25566028591279 is a deficient number, since it is larger than the sum of its proper divisors (2324254646993).

25566028591279 is a wasteful number, since it uses less digits than its factorization.

25566028591279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5852477.

The product of its (nonzero) digits is 163296000, while the sum is 67.

The spelling of 25566028591279 in words is "twenty-five trillion, five hundred sixty-six billion, twenty-eight million, five hundred ninety-one thousand, two hundred seventy-nine".