25066171249 has 16 divisors (see below), whose sum is σ = 30169809280. Its totient is φ = 20344348800.

The previous prime is 25066171217. The next prime is 25066171279. The reversal of 25066171249 is 94217166052.

It is not a de Polignac number, because 25066171249 - 2⁵ = 25066171217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25066171279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227149 + ... + 318949.

It is an arithmetic number, because the mean of its divisors is an integer number (1885613080).

Almost surely, 2^25066171249 is an apocalyptic number.

It is an amenable number.

25066171249 is a deficient number, since it is larger than the sum of its proper divisors (5103638031).

25066171249 is a wasteful number, since it uses less digits than its factorization.

25066171249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93880.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 25066171249 in words is "twenty-five billion, sixty-six million, one hundred seventy-one thousand, two hundred forty-nine".