25885506 has 16 divisors (see below), whose sum is σ = 51924384. Its totient is φ = 8602944.

The previous prime is 25885499. The next prime is 25885507. The reversal of 25885506 is 60558852.

It is not an unprimeable number, because it can be changed into a prime (25885507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4135 + ... + 8298.

It is an arithmetic number, because the mean of its divisors is an integer number (3245274).

Almost surely, 2^25885506 is an apocalyptic number.

25885506 is an abundant number, since it is smaller than the sum of its proper divisors (26038878).

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

25885506 is a wasteful number, since it uses less digits than its factorization.

25885506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12785.

The product of its (nonzero) digits is 96000, while the sum is 39.

The square root of 25885506 is about 5087.7800660013. The cubic root of 25885506 is about 295.8141105189.

The spelling of 25885506 in words is "twenty-five million, eight hundred eighty-five thousand, five hundred six".