25423503 has 32 divisors (see below), whose sum is σ = 40857600. Its totient is φ = 14041440.

The previous prime is 25423471. The next prime is 25423507. The reversal of 25423503 is 30532452.

It is not a de Polignac number, because 25423503 - 2⁵ = 25423471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25423507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31501 + ... + 32297.

It is an arithmetic number, because the mean of its divisors is an integer number (1276800).

Almost surely, 2^25423503 is an apocalyptic number.

25423503 is a deficient number, since it is larger than the sum of its proper divisors (15434097).

25423503 is an equidigital number, since it uses as much as digits as its factorization.

25423503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 25423503 is about 5042.1724484591. The cubic root of 25423503 is about 294.0436443143.

Adding to 25423503 its reverse (30532452), we get a palindrome (55955955).

The spelling of 25423503 in words is "twenty-five million, four hundred twenty-three thousand, five hundred three".