25424585 has 4 divisors (see below), whose sum is σ = 30509508. Its totient is φ = 20339664.

The previous prime is 25424533. The next prime is 25424593. The reversal of 25424585 is 58542452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18412681 + 7011904 = 4291^2 + 2648^2 .

It is a cyclic number.

It is not a de Polignac number, because 25424585 - 2⁶ = 25424521 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 2542454 + ... + 2542463.

It is an arithmetic number, because the mean of its divisors is an integer number (7627377).

Almost surely, 2^25424585 is an apocalyptic number.

It is an amenable number.

25424585 is a deficient number, since it is larger than the sum of its proper divisors (5084923).

25424585 is an equidigital number, since it uses as much as digits as its factorization.

25424585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5084922.

The product of its digits is 64000, while the sum is 35.

The square root of 25424585 is about 5042.2797423388. The cubic root of 25424585 is about 294.0478156607.

The spelling of 25424585 in words is "twenty-five million, four hundred twenty-four thousand, five hundred eighty-five".