25580530 has 16 divisors (see below), whose sum is σ = 46157760. Its totient is φ = 10207152.

The previous prime is 25580509. The next prime is 25580539. The reversal of 25580530 is 3508552.

It is not an unprimeable number, because it can be changed into a prime (25580539) 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 7 ways as a sum of consecutive naturals, for example, 1477 + ... + 7303.

It is an arithmetic number, because the mean of its divisors is an integer number (2884860).

Almost surely, 2^25580530 is an apocalyptic number.

25580530 is a deficient number, since it is larger than the sum of its proper divisors (20577230).

25580530 is a wasteful number, since it uses less digits than its factorization.

25580530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6273.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 25580530 is about 5057.7198419841. The cubic root of 25580530 is about 294.6477841775.

The spelling of 25580530 in words is "twenty-five million, five hundred eighty thousand, five hundred thirty".