25641332 has 6 divisors (see below), whose sum is σ = 44872338. Its totient is φ = 12820664.

The previous prime is 25641313. The next prime is 25641383. The reversal of 25641332 is 23314652.

It can be written as a sum of positive squares in only one way, i.e., 23775376 + 1865956 = 4876^2 + 1366^2 .

It is a congruent number.

It is an unprimeable number.

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, 3205163 + ... + 3205170.

It is an arithmetic number, because the mean of its divisors is an integer number (7478723).

Almost surely, 2^25641332 is an apocalyptic number.

It is an amenable number.

25641332 is a deficient number, since it is larger than the sum of its proper divisors (19231006).

25641332 is a wasteful number, since it uses less digits than its factorization.

25641332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6410337 (or 6410335 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 25641332 is about 5063.7270858529. The cubic root of 25641332 is about 294.8810475120.

Adding to 25641332 its reverse (23314652), we get a palindrome (48955984).

The spelling of 25641332 in words is "twenty-five million, six hundred forty-one thousand, three hundred thirty-two".