25112005 has 8 divisors (see below), whose sum is σ = 30242592. Its totient is φ = 20017488.

The previous prime is 25111987. The next prime is 25112027. The reversal of 25112005 is 50021152.

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

It is a cyclic number.

It is not a de Polignac number, because 25112005 - 2¹¹ = 25109957 is a prime.

It is a super-2 number, since 2×25112005² = 1261225590240050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25112005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7459 + ... + 10288.

It is an arithmetic number, because the mean of its divisors is an integer number (3780324).

Almost surely, 2^25112005 is an apocalyptic number.

It is an amenable number.

25112005 is a deficient number, since it is larger than the sum of its proper divisors (5130587).

25112005 is a wasteful number, since it uses less digits than its factorization.

25112005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18035.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 25112005 is about 5011.1879829039. The cubic root of 25112005 is about 292.8377961215.

Adding to 25112005 its reverse (50021152), we get a palindrome (75133157).

The spelling of 25112005 in words is "twenty-five million, one hundred twelve thousand, five".