25563103 has 4 divisors (see below), whose sum is σ = 25579528. Its totient is φ = 25546680.

The previous prime is 25563079. The next prime is 25563137. The reversal of 25563103 is 30136552.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25563103 - 2⁵ = 25563071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25563193) 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, 5601 + ... + 9082.

It is an arithmetic number, because the mean of its divisors is an integer number (6394882).

Almost surely, 2^25563103 is an apocalyptic number.

25563103 is a deficient number, since it is larger than the sum of its proper divisors (16425).

25563103 is a wasteful number, since it uses less digits than its factorization.

25563103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16424.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 25563103 is about 5055.9967365496. The cubic root of 25563103 is about 294.5808583629.

Adding to 25563103 its reverse (30136552), we get a palindrome (55699655).

The spelling of 25563103 in words is "twenty-five million, five hundred sixty-three thousand, one hundred three".