25513452 has 36 divisors (see below), whose sum is σ = 65225160. Its totient is φ = 8407872.

The previous prime is 25513451. The next prime is 25513457. The reversal of 25513452 is 25431552.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (25513451) 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 11 ways as a sum of consecutive naturals, for example, 778 + ... + 7185.

It is an arithmetic number, because the mean of its divisors is an integer number (1811810).

Almost surely, 2^25513452 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 25513452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32612580).

25513452 is an abundant number, since it is smaller than the sum of its proper divisors (39711708).

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

25513452 is a wasteful number, since it uses less digits than its factorization.

25513452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8062 (or 8057 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 25513452 is about 5051.0842400419. The cubic root of 25513452 is about 294.3900141097.

The spelling of 25513452 in words is "twenty-five million, five hundred thirteen thousand, four hundred fifty-two".