25552432 has 20 divisors (see below), whose sum is σ = 51105856. Its totient is φ = 12363840.

The previous prime is 25552427. The next prime is 25552433. The reversal of 25552432 is 23425552.

25552432 is an admirable number.

It is a super-2 number, since 2×25552432² = 1305853562229248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25552432.

It is not an unprimeable number, because it can be changed into a prime (25552433) 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 in 3 ways as a sum of consecutive naturals, for example, 25263 + ... + 26254.

Almost surely, 2^25552432 is an apocalyptic number.

It is an amenable number.

25552432 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25552432 is a wasteful number, since it uses less digits than its factorization.

25552432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51556 (or 51550 counting only the distinct ones).

The product of its digits is 12000, while the sum is 28.

The square root of 25552432 is about 5054.9413448625. The cubic root of 25552432 is about 294.5398629506.

Adding to 25552432 its reverse (23425552), we get a palindrome (48977984).

The spelling of 25552432 in words is "twenty-five million, five hundred fifty-two thousand, four hundred thirty-two".