25855251236 has 12 divisors (see below), whose sum is σ = 45256467312. Its totient is φ = 12924832008.

The previous prime is 25855251221. The next prime is 25855251241. The reversal of 25855251236 is 63215255852.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677510 + ... + 714653.

It is an arithmetic number, because the mean of its divisors is an integer number (3771372276).

Almost surely, 2^25855251236 is an apocalyptic number.

It is an amenable number.

25855251236 is a deficient number, since it is larger than the sum of its proper divisors (19401216076).

25855251236 is a wasteful number, since it uses less digits than its factorization.

25855251236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396810 (or 1396808 counting only the distinct ones).

The product of its digits is 720000, while the sum is 44.

The spelling of 25855251236 in words is "twenty-five billion, eight hundred fifty-five million, two hundred fifty-one thousand, two hundred thirty-six".