23503541321525 has 6 divisors (see below), whose sum is σ = 29144391238722. Its totient is φ = 18802833057200.

The previous prime is 23503541321497. The next prime is 23503541321527. The reversal of 23503541321525 is 52512314530532.

It can be written as a sum of positive squares in 3 ways, for example, as 294820764676 + 23208720556849 = 542974^2 + 4817543^2 .

It is not a de Polignac number, because 23503541321525 - 2⁴⁴ = 5911355277109 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 (23503541321527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 470070826406 + ... + 470070826455.

It is an arithmetic number, because the mean of its divisors is an integer number (4857398539787).

Almost surely, 2^{23503541321525} is an apocalyptic number.

23503541321525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23503541321525 is a deficient number, since it is larger than the sum of its proper divisors (5640849917197).

23503541321525 is an equidigital number, since it uses as much as digits as its factorization.

23503541321525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940141652871 (or 940141652866 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 41.

The spelling of 23503541321525 in words is "twenty-three trillion, five hundred three billion, five hundred forty-one million, three hundred twenty-one thousand, five hundred twenty-five".