23530404025 has 6 divisors (see below), whose sum is σ = 29177701022. Its totient is φ = 18824323200.

The previous prime is 23530403999. The next prime is 23530404151. The reversal of 23530404025 is 52040403532.

It can be written as a sum of positive squares in 3 ways, for example, as 176145984 + 23354258041 = 13272^2 + 152821^2 .

It is not a de Polignac number, because 23530404025 - 2⁹ = 23530403513 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 23530403984 and 23530404002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 470608056 + ... + 470608105.

Almost surely, 2^23530404025 is an apocalyptic number.

23530404025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23530404025 is a deficient number, since it is larger than the sum of its proper divisors (5647296997).

23530404025 is an equidigital number, since it uses as much as digits as its factorization.

23530404025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941216171 (or 941216166 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

Adding to 23530404025 its reverse (52040403532), we get a palindrome (75570807557).

The spelling of 23530404025 in words is "twenty-three billion, five hundred thirty million, four hundred four thousand, twenty-five".