25532806 has 16 divisors (see below), whose sum is σ = 43039584. Its totient is φ = 11271744.

The previous prime is 25532779. The next prime is 25532821. The reversal of 25532806 is 60823552.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20751 + ... + 21946.

It is an arithmetic number, because the mean of its divisors is an integer number (2689974).

Almost surely, 2^25532806 is an apocalyptic number.

25532806 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

25532806 is a deficient number, since it is larger than the sum of its proper divisors (17506778).

25532806 is a wasteful number, since it uses less digits than its factorization.

25532806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42735.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 25532806 is about 5052.9997031466. Note that the first 3 decimals coincide. The cubic root of 25532806 is about 294.4644347753.

The spelling of 25532806 in words is "twenty-five million, five hundred thirty-two thousand, eight hundred six".