25525005278 has 8 divisors (see below), whose sum is σ = 38288282040. Its totient is φ = 12762244600.

The previous prime is 25525005229. The next prime is 25525005301. The reversal of 25525005278 is 87250052552.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37733 + ... + 229071.

It is an arithmetic number, because the mean of its divisors is an integer number (4786035255).

Almost surely, 2^25525005278 is an apocalyptic number.

25525005278 is a deficient number, since it is larger than the sum of its proper divisors (12763276762).

25525005278 is a wasteful number, since it uses less digits than its factorization.

25525005278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258042.

The product of its (nonzero) digits is 280000, while the sum is 41.

The spelling of 25525005278 in words is "twenty-five billion, five hundred twenty-five million, five thousand, two hundred seventy-eight".