25505103 has 8 divisors (see below), whose sum is σ = 36622768. Its totient is φ = 15695424.

The previous prime is 25505101. The next prime is 25505111. The reversal of 25505103 is 30150552.

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

It is not a de Polignac number, because 25505103 - 2¹ = 25505101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25505103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25505101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326950 + ... + 327027.

It is an arithmetic number, because the mean of its divisors is an integer number (4577846).

Almost surely, 2^25505103 is an apocalyptic number.

25505103 is a deficient number, since it is larger than the sum of its proper divisors (11117665).

25505103 is a wasteful number, since it uses less digits than its factorization.

25505103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653993.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 25505103 is about 5050.2577161963. The cubic root of 25505103 is about 294.3578986283.

Adding to 25505103 its reverse (30150552), we get a palindrome (55655655).

The spelling of 25505103 in words is "twenty-five million, five hundred five thousand, one hundred three".