25000066196 has 12 divisors (see below), whose sum is σ = 50000132448. Its totient is φ = 10714314072.

The previous prime is 25000066187. The next prime is 25000066199. The reversal of 25000066196 is 69166000052.

It is a happy number.

25000066196 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25000066199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446429726 + ... + 446429781.

It is an arithmetic number, because the mean of its divisors is an integer number (4166677704).

Almost surely, 2^25000066196 is an apocalyptic number.

It is an amenable number.

25000066196 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25000066196 is a wasteful number, since it uses less digits than its factorization.

25000066196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892859518 (or 892859516 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The spelling of 25000066196 in words is "twenty-five billion, sixty-six thousand, one hundred ninety-six".