25664201 has 8 divisors (see below), whose sum is σ = 26180544. Its totient is φ = 25153200.

The previous prime is 25664189. The next prime is 25664239. The reversal of 25664201 is 10246652.

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 25664201 - 2²² = 21469897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25664281) 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, 9170 + ... + 11636.

It is an arithmetic number, because the mean of its divisors is an integer number (3272568).

Almost surely, 2^25664201 is an apocalyptic number.

It is an amenable number.

25664201 is a deficient number, since it is larger than the sum of its proper divisors (516343).

25664201 is a wasteful number, since it uses less digits than its factorization.

25664201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 25664201 is about 5065.9847019114. The cubic root of 25664201 is about 294.9686876657.

The spelling of 25664201 in words is "twenty-five million, six hundred sixty-four thousand, two hundred one".