25045784226 has 64 divisors (see below), whose sum is σ = 57050300160. Its totient is φ = 8139899520.

The previous prime is 25045784221. The next prime is 25045784261. The reversal of 25045784226 is 62248754052.

25045784226 is a `hidden beast` number, since 2 + 50 + 4 + 578 + 4 + 2 + 26 = 666.

It is not an unprimeable number, because it can be changed into a prime (25045784221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5481795 + ... + 5486361.

It is an arithmetic number, because the mean of its divisors is an integer number (891410940).

Almost surely, 2^25045784226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25045784226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28525150080).

25045784226 is an abundant number, since it is smaller than the sum of its proper divisors (32004515934).

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

25045784226 is a wasteful number, since it uses less digits than its factorization.

25045784226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7096 (or 7090 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 45.

The spelling of 25045784226 in words is "twenty-five billion, forty-five million, seven hundred eighty-four thousand, two hundred twenty-six".