25121201 has 8 divisors (see below), whose sum is σ = 28778304. Its totient is φ = 21481200.

The previous prime is 25121183. The next prime is 25121207. The reversal of 25121201 is 10212152.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25121201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25121207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 950 + ... + 7151.

It is an arithmetic number, because the mean of its divisors is an integer number (3597288).

Almost surely, 2^25121201 is an apocalyptic number.

It is an amenable number.

25121201 is a deficient number, since it is larger than the sum of its proper divisors (3657103).

25121201 is an equidigital number, since it uses as much as digits as its factorization.

25121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8551.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 25121201 is about 5012.1054458182. The cubic root of 25121201 is about 292.8735374295.

Adding to 25121201 its reverse (10212152), we get a palindrome (35333353).

The spelling of 25121201 in words is "twenty-five million, one hundred twenty-one thousand, two hundred one".