25052005 has 8 divisors (see below), whose sum is σ = 32795424. Its totient is φ = 18219600.

The previous prime is 25052003. The next prime is 25052011. The reversal of 25052005 is 50025052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25052005 - 2¹ = 25052003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25052003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227691 + ... + 227800.

It is an arithmetic number, because the mean of its divisors is an integer number (4099428).

Almost surely, 2^25052005 is an apocalyptic number.

It is an amenable number.

25052005 is a deficient number, since it is larger than the sum of its proper divisors (7743419).

25052005 is a wasteful number, since it uses less digits than its factorization.

25052005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455507.

The product of its (nonzero) digits is 500, while the sum is 19.

The square root of 25052005 is about 5005.1977982893. The cubic root of 25052005 is about 292.6043847857.

Adding to 25052005 its reverse (50025052), we get a palindrome (75077057).

The spelling of 25052005 in words is "twenty-five million, fifty-two thousand, five".