25677568 has 108 divisors (see below), whose sum is σ = 62914320. Its totient is φ = 10407936.

The previous prime is 25677529. The next prime is 25677601. The reversal of 25677568 is 86577652.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a zygodrome in base 2.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 288468 + ... + 288556.

It is an arithmetic number, because the mean of its divisors is an integer number (582540).

Almost surely, 2^25677568 is an apocalyptic number.

25677568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25677568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31457160).

25677568 is an abundant number, since it is smaller than the sum of its proper divisors (37236752).

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

25677568 is an equidigital number, since it uses as much as digits as its factorization.

25677568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 121 counting only the distinct ones).

The product of its digits is 705600, while the sum is 46.

The square root of 25677568 is about 5067.3038195869. The cubic root of 25677568 is about 295.0198894949.

The spelling of 25677568 in words is "twenty-five million, six hundred seventy-seven thousand, five hundred sixty-eight".