23555043 has 10 divisors (see below), whose sum is σ = 35187284. Its totient is φ = 15703308.

The previous prime is 23555039. The next prime is 23555111. The reversal of 23555043 is 34055532.

It is not a de Polignac number, because 23555043 - 2² = 23555039 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 junction number, because it is equal to n+sod(n) for n = 23554998 and 23555016.

It is not an unprimeable number, because it can be changed into a prime (23555023) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 145321 + ... + 145482.

Almost surely, 2^23555043 is an apocalyptic number.

23555043 is a deficient number, since it is larger than the sum of its proper divisors (11632241).

23555043 is an equidigital number, since it uses as much as digits as its factorization.

23555043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290815 (or 290806 counting only the distinct ones).

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

The square root of 23555043 is about 4853.3537888763. The cubic root of 23555043 is about 286.6561742749.

It can be divided in two parts, 235 and 55043, that added together give a triangular number (55278 = T₃₃₂).

The spelling of 23555043 in words is "twenty-three million, five hundred fifty-five thousand, forty-three".