25222254284136 has 256 divisors, whose sum is σ = 77836914892800. Its totient is φ = 6632326656000.

The previous prime is 25222254284113. The next prime is 25222254284207. The reversal of 25222254284136 is 63148245222252.

It is a super-2 number, since 2×25222254284136² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2328704241 + ... + 2328715071.

It is an arithmetic number, because the mean of its divisors is an integer number (304050448800).

Almost surely, 2^{25222254284136} is an apocalyptic number.

25222254284136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25222254284136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38918457446400).

25222254284136 is an abundant number, since it is smaller than the sum of its proper divisors (52614660608664).

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

25222254284136 is a wasteful number, since it uses less digits than its factorization.

25222254284136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13920 (or 13916 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 48.

The spelling of 25222254284136 in words is "twenty-five trillion, two hundred twenty-two billion, two hundred fifty-four million, two hundred eighty-four thousand, one hundred thirty-six".