25150215066 has 8 divisors (see below), whose sum is σ = 50300430144. Its totient is φ = 8383405020.

The previous prime is 25150215023. The next prime is 25150215067. The reversal of 25150215066 is 66051205152.

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

25150215066 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (25150215067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2095851250 + ... + 2095851261.

It is an arithmetic number, because the mean of its divisors is an integer number (6287553768).

Almost surely, 2^25150215066 is an apocalyptic number.

25150215066 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.

25150215066 is a wasteful number, since it uses less digits than its factorization.

25150215066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4191702516.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 25150215066 in words is "twenty-five billion, one hundred fifty million, two hundred fifteen thousand, sixty-six".