25905601 has 8 divisors (see below), whose sum is σ = 26795520. Its totient is φ = 25029888.

The previous prime is 25905599. The next prime is 25905623. The reversal of 25905601 is 10650952.

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 25905601 - 2¹ = 25905599 is a prime.

It is a super-2 number, since 2×25905601² = 1342200326342402, which contains 22 as substring.

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 25905601.

It is not an unprimeable number, because it can be changed into a prime (25905301) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 225 + ... + 7201.

It is an arithmetic number, because the mean of its divisors is an integer number (3349440).

Almost surely, 2^25905601 is an apocalyptic number.

It is an amenable number.

25905601 is a deficient number, since it is larger than the sum of its proper divisors (889919).

25905601 is an equidigital number, since it uses as much as digits as its factorization.

25905601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7103.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 25905601 is about 5089.7545127442. The cubic root of 25905601 is about 295.8906378620.

The spelling of 25905601 in words is "twenty-five million, nine hundred five thousand, six hundred one".