23255518623 has 4 divisors (see below), whose sum is σ = 31007358168. Its totient is φ = 15503679080.

The previous prime is 23255518613. The next prime is 23255518691. The reversal of 23255518623 is 32681555232.

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

It is a cyclic number.

It is not a de Polignac number, because 23255518623 - 2¹⁰ = 23255517599 is a prime.

It is a super-2 number, since 2×23255518623² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23255518603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3875919768 + ... + 3875919773.

It is an arithmetic number, because the mean of its divisors is an integer number (7751839542).

Almost surely, 2^23255518623 is an apocalyptic number.

23255518623 is a deficient number, since it is larger than the sum of its proper divisors (7751839545).

23255518623 is an equidigital number, since it uses as much as digits as its factorization.

23255518623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7751839544.

The product of its digits is 432000, while the sum is 42.

The spelling of 23255518623 in words is "twenty-three billion, two hundred fifty-five million, five hundred eighteen thousand, six hundred twenty-three".