25217383 has 4 divisors (see below), whose sum is σ = 25227720. Its totient is φ = 25207048.

The previous prime is 25217371. The next prime is 25217417. The reversal of 25217383 is 38371252.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25217383 - 2⁹ = 25216871 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 (25217303) 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 3 ways as a sum of consecutive naturals, for example, 753 + ... + 7141.

It is an arithmetic number, because the mean of its divisors is an integer number (6306930).

Almost surely, 2^25217383 is an apocalyptic number.

25217383 is a deficient number, since it is larger than the sum of its proper divisors (10337).

25217383 is an equidigital number, since it uses as much as digits as its factorization.

25217383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10336.

The product of its digits is 10080, while the sum is 31.

The square root of 25217383 is about 5021.6912489718. The cubic root of 25217383 is about 293.2468381627.

It can be divided in two parts, 25217 and 383, that added together give a square (25600 = 160²).

The spelling of 25217383 in words is "twenty-five million, two hundred seventeen thousand, three hundred eighty-three".