25103040012 has 18 divisors (see below), whose sum is σ = 63454906788. Its totient is φ = 8367679992.

The previous prime is 25103039999. The next prime is 25103040023. The reversal of 25103040012 is 21004030152.

25103040012 is a `hidden beast` number, since 251 + 0 + 3 + 0 + 400 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

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 5 ways as a sum of consecutive naturals, for example, 348653298 + ... + 348653369.

Almost surely, 2^25103040012 is an apocalyptic number.

It is an amenable number.

25103040012 is an abundant number, since it is smaller than the sum of its proper divisors (38351866776).

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

25103040012 is a wasteful number, since it uses less digits than its factorization.

25103040012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697306677 (or 697306672 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 25103040012 its reverse (21004030152), we get a palindrome (46107070164).

The spelling of 25103040012 in words is "twenty-five billion, one hundred three million, forty thousand, twelve".