23545215525525 has 48 divisors (see below), whose sum is σ = 39012097345728. Its totient is φ = 12530355264000.

The previous prime is 23545215525521. The next prime is 23545215525571. The reversal of 23545215525525 is 52552551254532.

It is not a de Polignac number, because 23545215525525 - 2² = 23545215525521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23545215525521) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 346010505 + ... + 346078545.

It is an arithmetic number, because the mean of its divisors is an integer number (812752028036).

Almost surely, 2^{23545215525525} is an apocalyptic number.

23545215525525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23545215525525 is a deficient number, since it is larger than the sum of its proper divisors (15466881820203).

23545215525525 is a wasteful number, since it uses less digits than its factorization.

23545215525525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77942 (or 77937 counting only the distinct ones).

The product of its digits is 15000000, while the sum is 51.

The spelling of 23545215525525 in words is "twenty-three trillion, five hundred forty-five billion, two hundred fifteen million, five hundred twenty-five thousand, five hundred twenty-five".