25805938372226 has 32 divisors (see below), whose sum is σ = 39884522107392. Its totient is φ = 12516392116800.

The previous prime is 25805938372223. The next prime is 25805938372243. The reversal of 25805938372226 is 62227383950852.

It is a super-2 number, since 2×25805938372226² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25805938372223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3656651 + ... + 8061201.

It is an arithmetic number, because the mean of its divisors is an integer number (1246391315856).

Almost surely, 2^{25805938372226} is an apocalyptic number.

25805938372226 is a deficient number, since it is larger than the sum of its proper divisors (14078583735166).

25805938372226 is a wasteful number, since it uses less digits than its factorization.

25805938372226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4405154.

The product of its (nonzero) digits is 87091200, while the sum is 62.

The spelling of 25805938372226 in words is "twenty-five trillion, eight hundred five billion, nine hundred thirty-eight million, three hundred seventy-two thousand, two hundred twenty-six".