25055995 has 4 divisors (see below), whose sum is σ = 30067200. Its totient is φ = 20044792.

The previous prime is 25055983. The next prime is 25055999. The reversal of 25055995 is 59955052.

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

It is a cyclic number.

It is not a de Polignac number, because 25055995 - 2⁷ = 25055867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25055999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2505595 + ... + 2505604.

It is an arithmetic number, because the mean of its divisors is an integer number (7516800).

Almost surely, 2^25055995 is an apocalyptic number.

25055995 is a deficient number, since it is larger than the sum of its proper divisors (5011205).

25055995 is an equidigital number, since it uses as much as digits as its factorization.

25055995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011204.

The product of its (nonzero) digits is 101250, while the sum is 40.

The square root of 25055995 is about 5005.5963680664. The cubic root of 25055995 is about 292.6199182000.

The spelling of 25055995 in words is "twenty-five million, fifty-five thousand, nine hundred ninety-five".