23153450555 has 4 divisors (see below), whose sum is σ = 27784140672. Its totient is φ = 18522760440.

The previous prime is 23153450533. The next prime is 23153450561. The reversal of 23153450555 is 55505435132.

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

It is not a de Polignac number, because 23153450555 - 2¹⁰ = 23153449531 is a prime.

It is a super-3 number, since 3×23153450555³ (a number of 32 digits) contains 333 as substring.

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, 2315345051 + ... + 2315345060.

It is an arithmetic number, because the mean of its divisors is an integer number (6946035168).

Almost surely, 2^23153450555 is an apocalyptic number.

23153450555 is a deficient number, since it is larger than the sum of its proper divisors (4630690117).

23153450555 is an equidigital number, since it uses as much as digits as its factorization.

23153450555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4630690116.

The product of its (nonzero) digits is 225000, while the sum is 38.

Adding to 23153450555 its reverse (55505435132), we get a palindrome (78658885687).

The spelling of 23153450555 in words is "twenty-three billion, one hundred fifty-three million, four hundred fifty thousand, five hundred fifty-five".