25631332 has 6 divisors (see below), whose sum is σ = 44854838. Its totient is φ = 12815664.

The previous prime is 25631321. The next prime is 25631339. The reversal of 25631332 is 23313652.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20939776 + 4691556 = 4576^2 + 2166^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25631297 and 25631306.

It is not an unprimeable number, because it can be changed into a prime (25631339) by changing a digit.

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 as a sum of consecutive naturals, namely, 3203913 + ... + 3203920.

Almost surely, 2^25631332 is an apocalyptic number.

It is an amenable number.

25631332 is a deficient number, since it is larger than the sum of its proper divisors (19223506).

25631332 is a wasteful number, since it uses less digits than its factorization.

25631332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6407837 (or 6407835 counting only the distinct ones).

The product of its digits is 3240, while the sum is 25.

The square root of 25631332 is about 5062.7395745782. The cubic root of 25631332 is about 294.8427084494.

Adding to 25631332 its reverse (23313652), we get a palindrome (48944984).

The spelling of 25631332 in words is "twenty-five million, six hundred thirty-one thousand, three hundred thirty-two".