25503712303 has 4 divisors (see below), whose sum is σ = 25756224408. Its totient is φ = 25251200200.

The previous prime is 25503712261. The next prime is 25503712373. The reversal of 25503712303 is 30321730552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25503712303 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 (25503712373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126255901 + ... + 126256102.

It is an arithmetic number, because the mean of its divisors is an integer number (6439056102).

Almost surely, 2^25503712303 is an apocalyptic number.

25503712303 is a deficient number, since it is larger than the sum of its proper divisors (252512105).

25503712303 is a wasteful number, since it uses less digits than its factorization.

25503712303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252512104.

The product of its (nonzero) digits is 18900, while the sum is 31.

The spelling of 25503712303 in words is "twenty-five billion, five hundred three million, seven hundred twelve thousand, three hundred three".