25055617066 has 8 divisors (see below), whose sum is σ = 37584111744. Its totient is φ = 12527579820.

The previous prime is 25055617033. The next prime is 25055617079. The reversal of 25055617066 is 66071655052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112921 + ... + 250723.

It is an arithmetic number, because the mean of its divisors is an integer number (4698013968).

Almost surely, 2^25055617066 is an apocalyptic number.

25055617066 is a deficient number, since it is larger than the sum of its proper divisors (12528494678).

25055617066 is a wasteful number, since it uses less digits than its factorization.

25055617066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228716.

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 25055617066 in words is "twenty-five billion, fifty-five million, six hundred seventeen thousand, sixty-six".