25200001 has 8 divisors (see below), whose sum is σ = 26732160. Its totient is φ = 23673408.

The previous prime is 25199983. The next prime is 25200011. The reversal of 25200001 is 10000252.

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 25200001 - 2⁷ = 25199873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25200011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11340 + ... + 13378.

It is an arithmetic number, because the mean of its divisors is an integer number (3341520).

Almost surely, 2^25200001 is an apocalyptic number.

It is an amenable number.

25200001 is a deficient number, since it is larger than the sum of its proper divisors (1532159).

25200001 is a wasteful number, since it uses less digits than its factorization.

25200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2783.

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 25200001 is about 5019.9602588068. The cubic root of 25200001 is about 293.1794456537.

Adding to 25200001 its reverse (10000252), we get a palindrome (35200253).

The spelling of 25200001 in words is "twenty-five million, two hundred thousand, one".