25282530 has 200 divisors, whose sum is σ = 85408092. Its totient is φ = 5334336.

The previous prime is 25282529. The next prime is 25282531. The reversal of 25282530 is 3528252.

25282530 is a `hidden beast` number, since 2 + 52 + 82 + 530 = 666.

It is an interprime number because it is at equal distance from previous prime (25282529) and next prime (25282531).

It can be written as a sum of positive squares in 2 ways, for example, as 23532201 + 1750329 = 4851^2 + 1323^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 25282494 and 25282503.

It is not an unprimeable number, because it can be changed into a prime (25282531) by changing a digit.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 1944804 + ... + 1944816.

Almost surely, 2^25282530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25282530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42704046).

25282530 is an abundant number, since it is smaller than the sum of its proper divisors (60125562).

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

25282530 is an equidigital number, since it uses as much as digits as its factorization.

25282530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 25282530 is about 5028.1736246872. The cubic root of 25282530 is about 293.4991472414.

The spelling of 25282530 in words is "twenty-five million, two hundred eighty-two thousand, five hundred thirty".