25401232 has 10 divisors (see below), whose sum is σ = 49214918. Its totient is φ = 12700608.

The previous prime is 25401227. The next prime is 25401253. The reversal of 25401232 is 23210452.

It can be written as a sum of positive squares in only one way, i.e., 23970816 + 1430416 = 4896^2 + 1196^2 .

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, 793773 + ... + 793804.

Almost surely, 2^25401232 is an apocalyptic number.

It is an amenable number.

25401232 is a deficient number, since it is larger than the sum of its proper divisors (23813686).

25401232 is a wasteful number, since it uses less digits than its factorization.

25401232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587585 (or 1587579 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 25401232 is about 5039.9634919313. The cubic root of 25401232 is about 293.9577584428.

Adding to 25401232 its reverse (23210452), we get a palindrome (48611684).

The spelling of 25401232 in words is "twenty-five million, four hundred one thousand, two hundred thirty-two".