25036648 has 96 divisors (see below), whose sum is σ = 62483400. Its totient is φ = 9321984.

The previous prime is 25036639. The next prime is 25036663. The reversal of 25036648 is 84663052.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18472804 + 6563844 = 4298^2 + 2562^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1472736 + ... + 1472752.

Almost surely, 2^25036648 is an apocalyptic number.

25036648 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 25036648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31241700).

25036648 is an abundant number, since it is smaller than the sum of its proper divisors (37446752).

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

25036648 is a wasteful number, since it uses less digits than its factorization.

25036648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84 (or 39 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 25036648 is about 5003.6634579076. The cubic root of 25036648 is about 292.5445832644.

The spelling of 25036648 in words is "twenty-five million, thirty-six thousand, six hundred forty-eight".