25716546 has 48 divisors (see below), whose sum is σ = 60922368. Its totient is φ = 7804800.

The previous prime is 25716541. The next prime is 25716547. The reversal of 25716546 is 64561752.

It is a happy number.

It is a super-2 number, since 2×25716546² = 1322681476340232, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25716546.

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 23 ways as a sum of consecutive naturals, for example, 8131 + ... + 10841.

It is an arithmetic number, because the mean of its divisors is an integer number (1269216).

Almost surely, 2^25716546 is an apocalyptic number.

25716546 is the 2711-st nonagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25716546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30461184).

25716546 is an abundant number, since it is smaller than the sum of its proper divisors (35205822).

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

25716546 is a wasteful number, since it uses less digits than its factorization.

25716546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767 (or 2764 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 25716546 is about 5071.1483906508. The cubic root of 25716546 is about 295.1690919895.

It can be divided in two parts, 25716 and 546, that added together give a palindrome (26262).

The spelling of 25716546 in words is "twenty-five million, seven hundred sixteen thousand, five hundred forty-six".