25015230002 has 24 divisors (see below), whose sum is σ = 45154167660. Its totient is φ = 10351128480.

The previous prime is 25015229983. The next prime is 25015230013. The reversal of 25015230002 is 20003251052.

It can be written as a sum of positive squares in 2 ways, for example, as 22876260001 + 2138970001 = 151249^2 + 46249^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4398149 + ... + 4403832.

Almost surely, 2^25015230002 is an apocalyptic number.

25015230002 is a deficient number, since it is larger than the sum of its proper divisors (20138937658).

25015230002 is a wasteful number, since it uses less digits than its factorization.

25015230002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8802026 (or 8802019 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

Adding to 25015230002 its reverse (20003251052), we get a palindrome (45018481054).

The spelling of 25015230002 in words is "twenty-five billion, fifteen million, two hundred thirty thousand, two".