23563943055 has 24 divisors (see below), whose sum is σ = 40851851040. Its totient is φ = 12565072320.

The previous prime is 23563943009. The next prime is 23563943057. The reversal of 23563943055 is 55034936532.

It is a happy number.

23563943055 is a `hidden beast` number, since 2 + 3 + 5 + 639 + 4 + 3 + 0 + 5 + 5 = 666.

It is not a de Polignac number, because 23563943055 - 2¹¹ = 23563941007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 23563943055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23563943057) 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 23 ways as a sum of consecutive naturals, for example, 207325 + ... + 300185.

It is an arithmetic number, because the mean of its divisors is an integer number (1702160460).

Almost surely, 2^23563943055 is an apocalyptic number.

23563943055 is a deficient number, since it is larger than the sum of its proper divisors (17287907985).

23563943055 is a wasteful number, since it uses less digits than its factorization.

23563943055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98511 (or 98508 counting only the distinct ones).

The product of its (nonzero) digits is 1458000, while the sum is 45.

The spelling of 23563943055 in words is "twenty-three billion, five hundred sixty-three million, nine hundred forty-three thousand, fifty-five".