25727616 has 96 divisors (see below), whose sum is σ = 77332320. Its totient is φ = 8194560.

The previous prime is 25727587. The next prime is 25727651. The reversal of 25727616 is 61672752.

25727616 is a `hidden beast` number, since 2 + 572 + 76 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26011 + ... + 26981.

It is an arithmetic number, because the mean of its divisors is an integer number (805545).

Almost surely, 2^25727616 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 25727616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38666160).

25727616 is an abundant number, since it is smaller than the sum of its proper divisors (51604704).

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

25727616 is a wasteful number, since it uses less digits than its factorization.

25727616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014 (or 999 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 25727616 is about 5072.2397419680. The cubic root of 25727616 is about 295.2114389557.

The spelling of 25727616 in words is "twenty-five million, seven hundred twenty-seven thousand, six hundred sixteen".