25563652 has 12 divisors (see below), whose sum is σ = 45063900. Its totient is φ = 12688256.

The previous prime is 25563647. The next prime is 25563667. The reversal of 25563652 is 25636552.

It can be written as a sum of positive squares in 2 ways, for example, as 15729156 + 9834496 = 3966^2 + 3136^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22777 + ... + 23872.

It is an arithmetic number, because the mean of its divisors is an integer number (3755325).

Almost surely, 2^25563652 is an apocalyptic number.

It is an amenable number.

25563652 is a deficient number, since it is larger than the sum of its proper divisors (19500248).

25563652 is a wasteful number, since it uses less digits than its factorization.

25563652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46790 (or 46788 counting only the distinct ones).

The product of its digits is 54000, while the sum is 34.

The square root of 25563652 is about 5056.0510282235. The cubic root of 25563652 is about 294.5829671801.

Subtracting 25563652 from its reverse (25636552), we obtain a square (72900 = 270²).

The spelling of 25563652 in words is "twenty-five million, five hundred sixty-three thousand, six hundred fifty-two".