23303145525 has 24 divisors (see below), whose sum is σ = 42030402144. Its totient is φ = 11298494400.

The previous prime is 23303145473. The next prime is 23303145587. The reversal of 23303145525 is 52554130332.

It is not a de Polignac number, because 23303145525 - 2¹⁷ = 23303014453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 14122294 + ... + 14123943.

It is an arithmetic number, because the mean of its divisors is an integer number (1751266756).

Almost surely, 2^23303145525 is an apocalyptic number.

23303145525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23303145525 is a deficient number, since it is larger than the sum of its proper divisors (18727256619).

23303145525 is a wasteful number, since it uses less digits than its factorization.

23303145525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28246261 (or 28246256 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 33.

Adding to 23303145525 its reverse (52554130332), we get a palindrome (75857275857).

The spelling of 23303145525 in words is "twenty-three billion, three hundred three million, one hundred forty-five thousand, five hundred twenty-five".