25878201 has 4 divisors (see below), whose sum is σ = 34504272. Its totient is φ = 17252132.

The previous prime is 25878173. The next prime is 25878221. The reversal of 25878201 is 10287852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25878201 - 2¹⁰ = 25877177 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25878221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4313031 + ... + 4313036.

It is an arithmetic number, because the mean of its divisors is an integer number (8626068).

Almost surely, 2^25878201 is an apocalyptic number.

It is an amenable number.

25878201 is a deficient number, since it is larger than the sum of its proper divisors (8626071).

25878201 is an equidigital number, since it uses as much as digits as its factorization.

25878201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8626070.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 25878201 is about 5087.0621187479. The cubic root of 25878201 is about 295.7862812338.

The spelling of 25878201 in words is "twenty-five million, eight hundred seventy-eight thousand, two hundred one".