23565264552 has 160 divisors (see below), whose sum is σ = 67082400000. Its totient is φ = 7727571072.

The previous prime is 23565264523. The next prime is 23565264557. The reversal of 23565264552 is 25546256532.

23565264552 is a `hidden beast` number, since 2 + 35 + 6 + 5 + 2 + 64 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 23565264498 and 23565264507.

It is not an unprimeable number, because it can be changed into a prime (23565264557) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17865349 + ... + 17866667.

It is an arithmetic number, because the mean of its divisors is an integer number (419265000).

Almost surely, 2^23565264552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23565264552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33541200000).

23565264552 is an abundant number, since it is smaller than the sum of its proper divisors (43517135448).

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

23565264552 is a wasteful number, since it uses less digits than its factorization.

23565264552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765 (or 1752 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 45.

The spelling of 23565264552 in words is "twenty-three billion, five hundred sixty-five million, two hundred sixty-four thousand, five hundred fifty-two".