23943571525 has 48 divisors (see below), whose sum is σ = 32469429760. Its totient is φ = 17447788800.

The previous prime is 23943571523. The next prime is 23943571529. The reversal of 23943571525 is 52517534932.

It is not a de Polignac number, because 23943571525 - 2¹ = 23943571523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23943571523) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2306647 + ... + 2317003.

Almost surely, 2^23943571525 is an apocalyptic number.

23943571525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23943571525 is a deficient number, since it is larger than the sum of its proper divisors (8525858235).

23943571525 is a wasteful number, since it uses less digits than its factorization.

23943571525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10574 (or 10569 counting only the distinct ones).

The product of its digits is 1134000, while the sum is 46.

The spelling of 23943571525 in words is "twenty-three billion, nine hundred forty-three million, five hundred seventy-one thousand, five hundred twenty-five".