25716544 has 56 divisors (see below), whose sum is σ = 58887360. Its totient is φ = 10914816.

The previous prime is 25716541. The next prime is 25716547. The reversal of 25716544 is 44561752.

It is an interprime number because it is at equal distance from previous prime (25716541) and next prime (25716547).

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×25716544² = 1322681270607872, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25716541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61167 + ... + 61585.

It is an arithmetic number, because the mean of its divisors is an integer number (1051560).

Almost surely, 2^25716544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25716544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29443680).

25716544 is an abundant number, since it is smaller than the sum of its proper divisors (33170816).

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

25716544 is a wasteful number, since it uses less digits than its factorization.

25716544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575 (or 565 counting only the distinct ones).

The product of its digits is 33600, while the sum is 34.

The square root of 25716544 is about 5071.1481934568. The cubic root of 25716544 is about 295.1690843376.

The spelling of 25716544 in words is "twenty-five million, seven hundred sixteen thousand, five hundred forty-four".