25631104 has 32 divisors (see below), whose sum is σ = 54070200. Its totient is φ = 12060672.

The previous prime is 25631069. The next prime is 25631107. The reversal of 25631104 is 40113652.

It is a tau number, because it is divible by the number of its divisors (32).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25631107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3714 + ... + 8065.

Almost surely, 2^25631104 is an apocalyptic number.

It is an amenable number.

25631104 is an abundant number, since it is smaller than the sum of its proper divisors (28439096).

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

25631104 is a wasteful number, since it uses less digits than its factorization.

25631104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11810 (or 11798 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 25631104 is about 5062.7170570752. The cubic root of 25631104 is about 294.8418342025.

Adding to 25631104 its reverse (40113652), we get a palindrome (65744756).

It can be divided in two parts, 256 and 31104, that multiplied together give a 5-th power (7962624 = 24⁵).

The spelling of 25631104 in words is "twenty-five million, six hundred thirty-one thousand, one hundred four".