23305534555 has 4 divisors (see below), whose sum is σ = 27966641472. Its totient is φ = 18644427640.

The previous prime is 23305534541. The next prime is 23305534589. The reversal of 23305534555 is 55543550332.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-23305534555 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2330553451 + ... + 2330553460.

It is an arithmetic number, because the mean of its divisors is an integer number (6991660368).

Almost surely, 2^23305534555 is an apocalyptic number.

23305534555 is a deficient number, since it is larger than the sum of its proper divisors (4661106917).

23305534555 is an equidigital number, since it uses as much as digits as its factorization.

23305534555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4661106916.

The product of its (nonzero) digits is 675000, while the sum is 40.

The spelling of 23305534555 in words is "twenty-three billion, three hundred five million, five hundred thirty-four thousand, five hundred fifty-five".