25643032 has 16 divisors (see below), whose sum is σ = 48142800. Its totient is φ = 12804960.

The previous prime is 25642973. The next prime is 25643063. The reversal of 25643032 is 23034652.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25642988 and 25643006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6694 + ... + 9802.

It is an arithmetic number, because the mean of its divisors is an integer number (3008925).

Almost surely, 2^25643032 is an apocalyptic number.

It is an amenable number.

25643032 is a deficient number, since it is larger than the sum of its proper divisors (22499768).

25643032 is a wasteful number, since it uses less digits than its factorization.

25643032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4146 (or 4142 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 25643032 is about 5063.8949436180. The cubic root of 25643032 is about 294.8875641613.

Adding to 25643032 its reverse (23034652), we get a palindrome (48677684).

The spelling of 25643032 in words is "twenty-five million, six hundred forty-three thousand, thirty-two".