25200049 has 4 divisors (see below), whose sum is σ = 28800064. Its totient is φ = 21600036.

The previous prime is 25200047. The next prime is 25200059. The reversal of 25200049 is 94000252.

It is a happy number.

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 25200049 - 2¹ = 25200047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25200041) 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, 1799997 + ... + 1800010.

It is an arithmetic number, because the mean of its divisors is an integer number (7200016).

Almost surely, 2^25200049 is an apocalyptic number.

It is an amenable number.

25200049 is a deficient number, since it is larger than the sum of its proper divisors (3600015).

25200049 is an equidigital number, since it uses as much as digits as its factorization.

25200049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3600014.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 25200049 is about 5019.9650397189. The cubic root of 25200049 is about 293.1796317992.

The spelling of 25200049 in words is "twenty-five million, two hundred thousand, forty-nine".