23055510055551 has 4 divisors (see below), whose sum is σ = 30740680074072. Its totient is φ = 15370340037032.

The previous prime is 23055510055537. The next prime is 23055510055561. The reversal of 23055510055551 is 15555001555032.

It is a happy number.

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 23055510055551 - 2⁵ = 23055510055519 is a prime.

It is a super-2 number, since 2×23055510055551² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23055510055511) 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, 3842585009256 + ... + 3842585009261.

It is an arithmetic number, because the mean of its divisors is an integer number (7685170018518).

Almost surely, 2^{23055510055551} is an apocalyptic number.

23055510055551 is a deficient number, since it is larger than the sum of its proper divisors (7685170018521).

23055510055551 is an equidigital number, since it uses as much as digits as its factorization.

23055510055551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7685170018520.

The product of its (nonzero) digits is 468750, while the sum is 42.

The spelling of 23055510055551 in words is "twenty-three trillion, fifty-five billion, five hundred ten million, fifty-five thousand, five hundred fifty-one".