25615452 has 12 divisors (see below), whose sum is σ = 59769416. Its totient is φ = 8538480.

The previous prime is 25615441. The next prime is 25615453. The reversal of 25615452 is 25451652.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25615453) 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, 1067299 + ... + 1067322.

Almost surely, 2^25615452 is an apocalyptic number.

It is an amenable number.

25615452 is an abundant number, since it is smaller than the sum of its proper divisors (34153964).

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

25615452 is a wasteful number, since it uses less digits than its factorization.

25615452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134628 (or 2134626 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 25615452 is about 5061.1710107445. The cubic root of 25615452 is about 294.7818055217.

The spelling of 25615452 in words is "twenty-five million, six hundred fifteen thousand, four hundred fifty-two".