25900001 has 8 divisors (see below), whose sum is σ = 27107520. Its totient is φ = 24699312.

The previous prime is 25899971. The next prime is 25900013. The reversal of 25900001 is 10000952.

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 25900001 - 2¹⁴ = 25883617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25900031) 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, 7070 + ... + 10088.

It is an arithmetic number, because the mean of its divisors is an integer number (3388440).

Almost surely, 2^25900001 is an apocalyptic number.

It is an amenable number.

25900001 is a deficient number, since it is larger than the sum of its proper divisors (1207519).

25900001 is a wasteful number, since it uses less digits than its factorization.

25900001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3415.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 25900001 is about 5089.2043582470. The cubic root of 25900001 is about 295.8693154849.

Adding to 25900001 its reverse (10000952), we get a palindrome (35900953).

The spelling of 25900001 in words is "twenty-five million, nine hundred thousand, one".