25324530 has 128 divisors (see below), whose sum is σ = 79902720. Its totient is φ = 4976640.

The previous prime is 25324529. The next prime is 25324531. The reversal of 25324530 is 3542352.

25324530 = T₉₃₂ + T₉₃₃ + ... + T₉₈₆.

It is an interprime number because it is at equal distance from previous prime (25324529) and next prime (25324531).

It is a self number, because there is not a number n which added to its sum of digits gives 25324530.

It is not an unprimeable number, because it can be changed into a prime (25324531) 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 63 ways as a sum of consecutive naturals, for example, 43602 + ... + 44178.

It is an arithmetic number, because the mean of its divisors is an integer number (624240).

Almost surely, 2^25324530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25324530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39951360).

25324530 is an abundant number, since it is smaller than the sum of its proper divisors (54578190).

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

25324530 is a wasteful number, since it uses less digits than its factorization.

25324530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 25324530 is about 5032.3483583711. The cubic root of 25324530 is about 293.6615801482.

Adding to 25324530 its reverse (3542352), we get a palindrome (28866882).

The spelling of 25324530 in words is "twenty-five million, three hundred twenty-four thousand, five hundred thirty".