25001305002 has 144 divisors (see below), whose sum is σ = 59552569440. Its totient is φ = 7557618816.

The previous prime is 25001304961. The next prime is 25001305073. The reversal of 25001305002 is 20050310052.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 31368868 + ... + 31369664.

It is an arithmetic number, because the mean of its divisors is an integer number (413559510).

Almost surely, 2^25001305002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25001305002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29776284720).

25001305002 is an abundant number, since it is smaller than the sum of its proper divisors (34551264438).

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

25001305002 is a wasteful number, since it uses less digits than its factorization.

25001305002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965 (or 925 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

Adding to 25001305002 its reverse (20050310052), we get a palindrome (45051615054).

The spelling of 25001305002 in words is "twenty-five billion, one million, three hundred five thousand, two".