25996001 has 4 divisors (see below), whose sum is σ = 26040000. Its totient is φ = 25952004.

The previous prime is 25995961. The next prime is 25996007. The reversal of 25996001 is 10069952.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25996001 - 2¹⁴ = 25979617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25996007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21101 + ... + 22298.

It is an arithmetic number, because the mean of its divisors is an integer number (6510000).

Almost surely, 2^25996001 is an apocalyptic number.

It is an amenable number.

25996001 is a deficient number, since it is larger than the sum of its proper divisors (43999).

25996001 is an equidigital number, since it uses as much as digits as its factorization.

25996001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43998.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 25996001 is about 5098.6273643011. The cubic root of 25996001 is about 296.2344175725.

The spelling of 25996001 in words is "twenty-five million, nine hundred ninety-six thousand, one".