23000556 has 24 divisors (see below), whose sum is σ = 53745664. Its totient is φ = 7655760.

The previous prime is 23000533. The next prime is 23000557. The reversal of 23000556 is 65500032.

It is not an unprimeable number, because it can be changed into a prime (23000557) 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 7 ways as a sum of consecutive naturals, for example, 14901 + ... + 16371.

Almost surely, 2^23000556 is an apocalyptic number.

It is an amenable number.

23000556 is an abundant number, since it is smaller than the sum of its proper divisors (30745108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23000556 is a wasteful number, since it uses less digits than its factorization.

23000556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781 (or 2779 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 23000556 is about 4795.8894899695. The cubic root of 23000556 is about 284.3889895465.

Adding to 23000556 its reverse (65500032), we get a palindrome (88500588).

The spelling of 23000556 in words is "twenty-three million, five hundred fifty-six", and thus it is an aban number.