25243205 has 16 divisors (see below), whose sum is σ = 33022080. Its totient is φ = 18412608.

The previous prime is 25243199. The next prime is 25243217. The reversal of 25243205 is 50234252.

It is a cyclic number.

It is not a de Polignac number, because 25243205 - 2⁴ = 25243189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3056 + ... + 7734.

It is an arithmetic number, because the mean of its divisors is an integer number (2063880).

Almost surely, 2^25243205 is an apocalyptic number.

It is an amenable number.

25243205 is a deficient number, since it is larger than the sum of its proper divisors (7778875).

25243205 is a wasteful number, since it uses less digits than its factorization.

25243205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4780.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 25243205 is about 5024.2616372956. The cubic root of 25243205 is about 293.3468966123.

Adding to 25243205 its reverse (50234252), we get a palindrome (75477457).

The spelling of 25243205 in words is "twenty-five million, two hundred forty-three thousand, two hundred five".