25308995 has 4 divisors (see below), whose sum is σ = 30370800. Its totient is φ = 20247192.

The previous prime is 25308977. The next prime is 25309003. The reversal of 25308995 is 59980352.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25308995 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2530895 + ... + 2530904.

It is an arithmetic number, because the mean of its divisors is an integer number (7592700).

Almost surely, 2^25308995 is an apocalyptic number.

25308995 is a deficient number, since it is larger than the sum of its proper divisors (5061805).

25308995 is an equidigital number, since it uses as much as digits as its factorization.

25308995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5061804.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 25308995 is about 5030.8046076150. The cubic root of 25308995 is about 293.6015202536.

The spelling of 25308995 in words is "twenty-five million, three hundred eight thousand, nine hundred ninety-five".