23305052540 has 144 divisors (see below), whose sum is σ = 61593470400. Its totient is φ = 7250411520.

The previous prime is 23305052513. The next prime is 23305052543. The reversal of 23305052540 is 4525050332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23305052543) 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, 13025966 + ... + 13027754.

Almost surely, 2^23305052540 is an apocalyptic number.

23305052540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23305052540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30796735200).

23305052540 is an abundant number, since it is smaller than the sum of its proper divisors (38288417860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23305052540 is a wasteful number, since it uses less digits than its factorization.

23305052540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2596 (or 2583 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 29.

The spelling of 23305052540 in words is "twenty-three billion, three hundred five million, fifty-two thousand, five hundred forty".