25080305 has 4 divisors (see below), whose sum is σ = 30096372. Its totient is φ = 20064240.

The previous prime is 25080301. The next prime is 25080337. The reversal of 25080305 is 50308052.

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 15295921 + 9784384 = 3911^2 + 3128^2 .

It is not a de Polignac number, because 25080305 - 2² = 25080301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25080301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2508026 + ... + 2508035.

It is an arithmetic number, because the mean of its divisors is an integer number (7524093).

Almost surely, 2^25080305 is an apocalyptic number.

It is an amenable number.

25080305 is a deficient number, since it is larger than the sum of its proper divisors (5016067).

25080305 is an equidigital number, since it uses as much as digits as its factorization.

25080305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016066.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 25080305 is about 5008.0240614438. The cubic root of 25080305 is about 292.7145235144.

Adding to 25080305 its reverse (50308052), we get a palindrome (75388357).

The spelling of 25080305 in words is "twenty-five million, eighty thousand, three hundred five".