25425001 has 8 divisors (see below), whose sum is σ = 29605824. Its totient is φ = 21381360.

The previous prime is 25424989. The next prime is 25425007. The reversal of 25425001 is 10052452.

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

It is not a de Polignac number, because 25425001 - 2⁵ = 25424969 is a prime.

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 25425001.

It is not an unprimeable number, because it can be changed into a prime (25425007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33895 + ... + 34636.

It is an arithmetic number, because the mean of its divisors is an integer number (3700728).

Almost surely, 2^25425001 is an apocalyptic number.

It is an amenable number.

25425001 is a deficient number, since it is larger than the sum of its proper divisors (4180823).

25425001 is an equidigital number, since it uses as much as digits as its factorization.

25425001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68591.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 25425001 is about 5042.3209933522. The cubic root of 25425001 is about 294.0494194001.

Adding to 25425001 its reverse (10052452), we get a palindrome (35477453).

The spelling of 25425001 in words is "twenty-five million, four hundred twenty-five thousand, one".