25636532 has 6 divisors (see below), whose sum is σ = 44863938. Its totient is φ = 12818264.

The previous prime is 25636519. The next prime is 25636537. The reversal of 25636532 is 23563652.

It can be written as a sum of positive squares in only one way, i.e., 13498276 + 12138256 = 3674^2 + 3484^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25636537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3204563 + ... + 3204570.

It is an arithmetic number, because the mean of its divisors is an integer number (7477323).

Almost surely, 2^25636532 is an apocalyptic number.

It is an amenable number.

25636532 is a deficient number, since it is larger than the sum of its proper divisors (19227406).

25636532 is a wasteful number, since it uses less digits than its factorization.

25636532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6409137 (or 6409135 counting only the distinct ones).

The product of its digits is 32400, while the sum is 32.

The square root of 25636532 is about 5063.2531044774. The cubic root of 25636532 is about 294.8626460062.

The spelling of 25636532 in words is "twenty-five million, six hundred thirty-six thousand, five hundred thirty-two".