25604116 has 6 divisors (see below), whose sum is σ = 44807210. Its totient is φ = 12802056.

The previous prime is 25604113. The next prime is 25604147. The reversal of 25604116 is 61140652.

It can be written as a sum of positive squares in only one way, i.e., 18096516 + 7507600 = 4254^2 + 2740^2 .

It is a super-2 number, since 2×25604116² = 1311141512282912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25604113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3200511 + ... + 3200518.

Almost surely, 2^25604116 is an apocalyptic number.

It is an amenable number.

25604116 is a deficient number, since it is larger than the sum of its proper divisors (19203094).

25604116 is a wasteful number, since it uses less digits than its factorization.

25604116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6401033 (or 6401031 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 25604116 is about 5060.0509878854. The cubic root of 25604116 is about 294.7383143298.

Adding to 25604116 its reverse (61140652), we get a palindrome (86744768).

The spelling of 25604116 in words is "twenty-five million, six hundred four thousand, one hundred sixteen".