25522004 has 12 divisors (see below), whose sum is σ = 44990484. Its totient is φ = 12667584.

The previous prime is 25521983. The next prime is 25522033. The reversal of 25522004 is 40022552.

It can be written as a sum of positive squares in 2 ways, for example, as 5290000 + 20232004 = 2300^2 + 4498^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 22739 + ... + 23834.

It is an arithmetic number, because the mean of its divisors is an integer number (3749207).

Almost surely, 2^25522004 is an apocalyptic number.

It is an amenable number.

25522004 is a deficient number, since it is larger than the sum of its proper divisors (19468480).

25522004 is a wasteful number, since it uses less digits than its factorization.

25522004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46714 (or 46712 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 25522004 is about 5051.9307200317. The cubic root of 25522004 is about 294.4229031932.

Adding to 25522004 its reverse (40022552), we get a palindrome (65544556).

The spelling of 25522004 in words is "twenty-five million, five hundred twenty-two thousand, four".