25563351 has 16 divisors (see below), whose sum is σ = 37457280. Its totient is φ = 15378720.

The previous prime is 25563323. The next prime is 25563353. The reversal of 25563351 is 15336552.

It is not a de Polignac number, because 25563351 - 2⁵ = 25563319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25563353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1801 + ... + 7373.

It is an arithmetic number, because the mean of its divisors is an integer number (2341080).

Almost surely, 2^25563351 is an apocalyptic number.

25563351 is a deficient number, since it is larger than the sum of its proper divisors (11893929).

25563351 is a wasteful number, since it uses less digits than its factorization.

25563351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5726.

The product of its digits is 13500, while the sum is 30.

The square root of 25563351 is about 5056.0212618224. The cubic root of 25563351 is about 294.5818109835.

The spelling of 25563351 in words is "twenty-five million, five hundred sixty-three thousand, three hundred fifty-one".