25305203023 has 4 divisors (see below), whose sum is σ = 25308585000. Its totient is φ = 25301821048.

The previous prime is 25305202981. The next prime is 25305203051. The reversal of 25305203023 is 32030250352.

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

It is a cyclic number.

It is not a de Polignac number, because 25305203023 - 2¹⁷ = 25305071951 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 (25305203093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1679740 + ... + 1694737.

It is an arithmetic number, because the mean of its divisors is an integer number (6327146250).

Almost surely, 2^25305203023 is an apocalyptic number.

25305203023 is a deficient number, since it is larger than the sum of its proper divisors (3381977).

25305203023 is an equidigital number, since it uses as much as digits as its factorization.

25305203023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3381976.

The product of its (nonzero) digits is 5400, while the sum is 25.

Adding to 25305203023 its reverse (32030250352), we get a palindrome (57335453375).

The spelling of 25305203023 in words is "twenty-five billion, three hundred five million, two hundred three thousand, twenty-three".