23255554145551 has 16 divisors (see below), whose sum is σ = 28634364247104. Its totient is φ = 18392192181504.

The previous prime is 23255554145519. The next prime is 23255554145557. The reversal of 23255554145551 is 15554145555232.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23255554145551 - 2⁵ = 23255554145519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23255554145557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53997550 + ... + 54426523.

It is an arithmetic number, because the mean of its divisors is an integer number (1789647765444).

Almost surely, 2^{23255554145551} is an apocalyptic number.

23255554145551 is a deficient number, since it is larger than the sum of its proper divisors (5378810101553).

23255554145551 is a wasteful number, since it uses less digits than its factorization.

23255554145551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108426450.

The product of its digits is 15000000, while the sum is 52.

The spelling of 23255554145551 in words is "twenty-three trillion, two hundred fifty-five billion, five hundred fifty-four million, one hundred forty-five thousand, five hundred fifty-one".