25117576712 has 36 divisors (see below), whose sum is σ = 47558006055. Its totient is φ = 12436636416.

The previous prime is 25117576703. The next prime is 25117576723. The reversal of 25117576712 is 21767571152.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 24026860036 + 1090716676 = 155006^2 + 33026^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=112066.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 61411964 + ... + 61412372.

Almost surely, 2^25117576712 is an apocalyptic number.

It is an amenable number.

25117576712 is a deficient number, since it is larger than the sum of its proper divisors (22440429343).

25117576712 is an frugal number, since it uses more digits than its factorization.

25117576712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098 (or 548 counting only the distinct ones).

The product of its digits is 205800, while the sum is 44.

The spelling of 25117576712 in words is "twenty-five billion, one hundred seventeen million, five hundred seventy-six thousand, seven hundred twelve".