25500503 has 8 divisors (see below), whose sum is σ = 29188608. Its totient is φ = 21823704.

The previous prime is 25500487. The next prime is 25500509. The reversal of 25500503 is 30500552.

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

It is not a de Polignac number, because 25500503 - 2⁴ = 25500487 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 (25500509) 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, 2750 + ... + 7652.

It is an arithmetic number, because the mean of its divisors is an integer number (3648576).

Almost surely, 2^25500503 is an apocalyptic number.

25500503 is a deficient number, since it is larger than the sum of its proper divisors (3688105).

25500503 is an equidigital number, since it uses as much as digits as its factorization.

25500503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5653.

The product of its (nonzero) digits is 750, while the sum is 20.

The square root of 25500503 is about 5049.8022733568. The cubic root of 25500503 is about 294.3402011536.

The spelling of 25500503 in words is "twenty-five million, five hundred thousand, five hundred three".