25644652 has 24 divisors (see below), whose sum is σ = 49694400. Its totient is φ = 11481360.

The previous prime is 25644649. The next prime is 25644659.

25644652 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×25644652² = 1315296352402208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25644659) 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 in 7 ways as a sum of consecutive naturals, for example, 1402 + ... + 7297.

It is an arithmetic number, because the mean of its divisors is an integer number (2070600).

Almost surely, 2^25644652 is an apocalyptic number.

25644652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25644652 is a deficient number, since it is larger than the sum of its proper divisors (24049748).

25644652 is a wasteful number, since it uses less digits than its factorization.

25644652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8781 (or 8779 counting only the distinct ones).

The product of its digits is 57600, while the sum is 34.

The square root of 25644652 is about 5064.0548970168. The cubic root of 25644652 is about 294.8937738767.

The spelling of 25644652 in words is "twenty-five million, six hundred forty-four thousand, six hundred fifty-two".