25122956168 has 12 divisors (see below), whose sum is σ = 47106383415. Its totient is φ = 12561253928.

The previous prime is 25122956129. The next prime is 25122956179. The reversal of 25122956168 is 86165922152.

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 only one way, i.e., 12561478084 + 12561478084 = 112078^2 + 112078^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=112078.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 420293 + ... + 476331.

Almost surely, 2^25122956168 is an apocalyptic number.

It is an amenable number.

25122956168 is a deficient number, since it is larger than the sum of its proper divisors (21983427247).

25122956168 is an frugal number, since it uses more digits than its factorization.

25122956168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112084 (or 56041 counting only the distinct ones).

The product of its digits is 518400, while the sum is 47.

The spelling of 25122956168 in words is "twenty-five billion, one hundred twenty-two million, nine hundred fifty-six thousand, one hundred sixty-eight".