25630536 has 16 divisors (see below), whose sum is σ = 64076400. Its totient is φ = 8543504.

The previous prime is 25630513. The next prime is 25630559. The reversal of 25630536 is 63503652.

It is an interprime number because it is at equal distance from previous prime (25630513) and next prime (25630559).

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 in 3 ways as a sum of consecutive naturals, for example, 533946 + ... + 533993.

It is an arithmetic number, because the mean of its divisors is an integer number (4004775).

Almost surely, 2^25630536 is an apocalyptic number.

It is an amenable number.

25630536 is an abundant number, since it is smaller than the sum of its proper divisors (38445864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25630536 is a wasteful number, since it uses less digits than its factorization.

25630536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067948 (or 1067944 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 30.

The square root of 25630536 is about 5062.6609604041. The cubic root of 25630536 is about 294.8396562316.

The spelling of 25630536 in words is "twenty-five million, six hundred thirty thousand, five hundred thirty-six".