25112510512 has 20 divisors (see below), whose sum is σ = 48924309616. Its totient is φ = 12486882240.

The previous prime is 25112510503. The next prime is 25112510543. The reversal of 25112510512 is 21501521152.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4332828 + ... + 4338619.

Almost surely, 2^25112510512 is an apocalyptic number.

It is an amenable number.

25112510512 is a deficient number, since it is larger than the sum of its proper divisors (23811799104).

25112510512 is a wasteful number, since it uses less digits than its factorization.

25112510512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8671636 (or 8671630 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 25.

The spelling of 25112510512 in words is "twenty-five billion, one hundred twelve million, five hundred ten thousand, five hundred twelve".