25855278626 has 16 divisors (see below), whose sum is σ = 40408139520. Its totient is φ = 12393693840.

The previous prime is 25855278611. The next prime is 25855278649. The reversal of 25855278626 is 62687255852.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1942061 + ... + 1955328.

It is an arithmetic number, because the mean of its divisors is an integer number (2525508720).

Almost surely, 2^25855278626 is an apocalyptic number.

25855278626 is a deficient number, since it is larger than the sum of its proper divisors (14552860894).

25855278626 is a wasteful number, since it uses less digits than its factorization.

25855278626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897529.

The product of its digits is 16128000, while the sum is 56.

The spelling of 25855278626 in words is "twenty-five billion, eight hundred fifty-five million, two hundred seventy-eight thousand, six hundred twenty-six".