25804002 has 32 divisors (see below), whose sum is σ = 59513472. Its totient is φ = 7305984.

The previous prime is 25804001. The next prime is 25804003. The reversal of 25804002 is 20040852.

It is an interprime number because it is at equal distance from previous prime (25804001) and next prime (25804003).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 25804002.

It is not an unprimeable number, because it can be changed into a prime (25804001) 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 15 ways as a sum of consecutive naturals, for example, 2028 + ... + 7464.

It is an arithmetic number, because the mean of its divisors is an integer number (1859796).

Almost surely, 2^25804002 is an apocalyptic number.

25804002 is an abundant number, since it is smaller than the sum of its proper divisors (33709470).

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

25804002 is a wasteful number, since it uses less digits than its factorization.

25804002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5562.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 25804002 is about 5079.7639708947. The cubic root of 25804002 is about 295.5033139135.

Adding to 25804002 its reverse (20040852), we get a palindrome (45844854).

The spelling of 25804002 in words is "twenty-five million, eight hundred four thousand, two".