25544016 has 60 divisors (see below), whose sum is σ = 71959680. Its totient is φ = 8458560.

The previous prime is 25544009. The next prime is 25544063. The reversal of 25544016 is 61044552.

25544016 is a `hidden beast` number, since 255 + 4 + 401 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25281 + ... + 26271.

It is an arithmetic number, because the mean of its divisors is an integer number (1199328).

Almost surely, 2^25544016 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 25544016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35979840).

25544016 is an abundant number, since it is smaller than the sum of its proper divisors (46415664).

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

25544016 is a wasteful number, since it uses less digits than its factorization.

25544016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184 (or 1175 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 25544016 is about 5054.1088235217. The cubic root of 25544016 is about 294.5075226541.

Adding to 25544016 its reverse (61044552), we get a palindrome (86588568).

The spelling of 25544016 in words is "twenty-five million, five hundred forty-four thousand, sixteen".