25561652 has 6 divisors (see below), whose sum is σ = 44732898. Its totient is φ = 12780824.

The previous prime is 25561649. The next prime is 25561661. The reversal of 25561652 is 25616552.

It can be written as a sum of positive squares in only one way, i.e., 25441936 + 119716 = 5044^2 + 346^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3195203 + ... + 3195210.

It is an arithmetic number, because the mean of its divisors is an integer number (7455483).

Almost surely, 2^25561652 is an apocalyptic number.

It is an amenable number.

25561652 is a deficient number, since it is larger than the sum of its proper divisors (19171246).

25561652 is a wasteful number, since it uses less digits than its factorization.

25561652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6390417 (or 6390415 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The square root of 25561652 is about 5055.8532415409. The cubic root of 25561652 is about 294.5752846406.

The spelling of 25561652 in words is "twenty-five million, five hundred sixty-one thousand, six hundred fifty-two".