25043632 has 20 divisors (see below), whose sum is σ = 49138720. Its totient is φ = 12362688.

The previous prime is 25043609. The next prime is 25043639. The reversal of 25043632 is 23634052.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25043597 and 25043606.

It is not an unprimeable number, because it can be changed into a prime (25043639) 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, 8643 + ... + 11170.

It is an arithmetic number, because the mean of its divisors is an integer number (2456936).

Almost surely, 2^25043632 is an apocalyptic number.

It is an amenable number.

25043632 is a deficient number, since it is larger than the sum of its proper divisors (24095088).

25043632 is a wasteful number, since it uses less digits than its factorization.

25043632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19900 (or 19894 counting only the distinct ones).

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

The square root of 25043632 is about 5004.3612979081. The cubic root of 25043632 is about 292.5717826112.

Adding to 25043632 its reverse (23634052), we get a palindrome (48677684).

The spelling of 25043632 in words is "twenty-five million, forty-three thousand, six hundred thirty-two".