25053303444 has 96 divisors (see below), whose sum is σ = 66841883136. Its totient is φ = 7235205120.

The previous prime is 25053303389. The next prime is 25053303523. The reversal of 25053303444 is 44430335052.

It is a happy number.

It is a super-2 number, since 2×25053303444² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 960414 + ... + 986154.

It is an arithmetic number, because the mean of its divisors is an integer number (696269616).

Almost surely, 2^25053303444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25053303444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33420941568).

25053303444 is an abundant number, since it is smaller than the sum of its proper divisors (41788579692).

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

25053303444 is a wasteful number, since it uses less digits than its factorization.

25053303444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26145 (or 26143 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 33.

Adding to 25053303444 its reverse (44430335052), we get a palindrome (69483638496).

The spelling of 25053303444 in words is "twenty-five billion, fifty-three million, three hundred three thousand, four hundred forty-four".