25260005 has 8 divisors (see below), whose sum is σ = 30764832. Its totient is φ = 19906128.

The previous prime is 25259989. The next prime is 25260007. The reversal of 25260005 is 50006252.

It is a happy number.

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 25260005 - 2⁴ = 25259989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25260007) 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, 37367 + ... + 38036.

It is an arithmetic number, because the mean of its divisors is an integer number (3845604).

Almost surely, 2^25260005 is an apocalyptic number.

It is an amenable number.

25260005 is a deficient number, since it is larger than the sum of its proper divisors (5504827).

25260005 is an equidigital number, since it uses as much as digits as its factorization.

25260005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75475.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 25260005 is about 5025.9332466717. The cubic root of 25260005 is about 293.4119588073.

Adding to 25260005 its reverse (50006252), we get a palindrome (75266257).

The spelling of 25260005 in words is "twenty-five million, two hundred sixty thousand, five".