25876530 has 64 divisors (see below), whose sum is σ = 69465600. Its totient is φ = 6854400.

The previous prime is 25876519. The next prime is 25876547. The reversal of 25876530 is 3567852.

25876530 is a `hidden beast` number, since 2 + 58 + 76 + 530 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64330 + ... + 64730.

It is an arithmetic number, because the mean of its divisors is an integer number (1085400).

Almost surely, 2^25876530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25876530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34732800).

25876530 is an abundant number, since it is smaller than the sum of its proper divisors (43589070).

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

25876530 is a wasteful number, since it uses less digits than its factorization.

25876530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656 (or 650 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 25876530 is about 5086.8978759161. The cubic root of 25876530 is about 295.7799146202.

The spelling of 25876530 in words is "twenty-five million, eight hundred seventy-six thousand, five hundred thirty".