25256016 has 160 divisors (see below), whose sum is σ = 81244800. Its totient is φ = 7464960.

The previous prime is 25256003. The next prime is 25256017. The reversal of 25256016 is 61065252.

25256016 is a `hidden beast` number, since 2 + 52 + 5 + 601 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25256017) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 139446 + ... + 139626.

It is an arithmetic number, because the mean of its divisors is an integer number (507780).

Almost surely, 2^25256016 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 25256016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40622400).

25256016 is an abundant number, since it is smaller than the sum of its proper divisors (55988784).

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

25256016 is a wasteful number, since it uses less digits than its factorization.

25256016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 25256016 is about 5025.5363892822. The cubic root of 25256016 is about 293.3965130210.

The spelling of 25256016 in words is "twenty-five million, two hundred fifty-six thousand, sixteen".