25066440000 has 1050 divisors, whose sum is σ = 108350886930. Its totient is φ = 5531904000.

The previous prime is 25066439999. The next prime is 25066440001. The reversal of 25066440000 is 4466052.

It is a happy number.

25066440000 is a `hidden beast` number, since 250 + 6 + 6 + 4 + 400 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (25066439999) and next prime (25066440001).

It can be written as a sum of positive squares in 5 ways, for example, as 9527321664 + 15539118336 = 97608^2 + 124656^2 .

It is a tau number, because it is divible by the number of its divisors (1050).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25066440001) by changing a digit.

It is a polite number, since it can be written in 149 ways as a sum of consecutive naturals, for example, 864359986 + ... + 864360014.

Almost surely, 2^25066440000 is an apocalyptic number.

25066440000 is a gapful number since it is divisible by the number (20) 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 25066440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54175443465).

25066440000 is an abundant number, since it is smaller than the sum of its proper divisors (83284446930).

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

25066440000 is an frugal number, since it uses more digits than its factorization.

25066440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 46 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The spelling of 25066440000 in words is "twenty-five billion, sixty-six million, four hundred forty thousand".