23055543 has 32 divisors (see below), whose sum is σ = 39296000. Its totient is φ = 13087008.

The previous prime is 23055533. The next prime is 23055547. The reversal of 23055543 is 34555032.

It is not a de Polignac number, because 23055543 - 2⁵ = 23055511 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23055547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37305 + ... + 37917.

It is an arithmetic number, because the mean of its divisors is an integer number (1228000).

Almost surely, 2^23055543 is an apocalyptic number.

23055543 is a deficient number, since it is larger than the sum of its proper divisors (16240457).

23055543 is a wasteful number, since it uses less digits than its factorization.

23055543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 23055543 is about 4801.6187895334. The cubic root of 23055543 is about 284.6154370044.

The spelling of 23055543 in words is "twenty-three million, fifty-five thousand, five hundred forty-three".