25328889042 has 8 divisors (see below), whose sum is σ = 50657778096. Its totient is φ = 8442963012.

The previous prime is 25328889041. The next prime is 25328889121. The reversal of 25328889042 is 24098882352.

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

25328889042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (25328889041) 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, 2110740748 + ... + 2110740759.

It is an arithmetic number, because the mean of its divisors is an integer number (6332222262).

Almost surely, 2^25328889042 is an apocalyptic number.

25328889042 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.

25328889042 is a wasteful number, since it uses less digits than its factorization.

25328889042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4221481512.

The product of its (nonzero) digits is 2211840, while the sum is 51.

The spelling of 25328889042 in words is "twenty-five billion, three hundred twenty-eight million, eight hundred eighty-nine thousand, forty-two".