25130278266 has 16 divisors (see below), whose sum is σ = 50263926624. Its totient is φ = 8376197744.

The previous prime is 25130278249. The next prime is 25130278273. The reversal of 25130278266 is 66287203152.

25130278266 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37701 + ... + 227336.

It is an arithmetic number, because the mean of its divisors is an integer number (3141495414).

Almost surely, 2^25130278266 is an apocalyptic number.

25130278266 is an abundant number, since it is smaller than the sum of its proper divisors (25133648358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25130278266 is a wasteful number, since it uses less digits than its factorization.

25130278266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280845.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 25130278266 in words is "twenty-five billion, one hundred thirty million, two hundred seventy-eight thousand, two hundred sixty-six".