25155712 has 32 divisors (see below), whose sum is σ = 50979600. Its totient is φ = 12360960.

The previous prime is 25155703. The next prime is 25155719. The reversal of 25155712 is 21755152.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (25155719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5887 + ... + 9217.

Almost surely, 2^25155712 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 25155712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25489800).

25155712 is an abundant number, since it is smaller than the sum of its proper divisors (25823888).

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

25155712 is an equidigital number, since it uses as much as digits as its factorization.

25155712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3404 (or 3392 counting only the distinct ones).

The product of its digits is 3500, while the sum is 28.

The square root of 25155712 is about 5015.5470289890. The cubic root of 25155712 is about 293.0075906508.

The spelling of 25155712 in words is "twenty-five million, one hundred fifty-five thousand, seven hundred twelve".