23555555 has 8 divisors (see below), whose sum is σ = 28294800. Its totient is φ = 18825696.

The previous prime is 23555551. The next prime is 23555561. The reversal of 23555555 is 55555532.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23555555 - 2² = 23555551 is a prime.

23555555 is a modest number, since divided by 5555 gives 2355 as remainder.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (23555551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5681 + ... + 8909.

It is an arithmetic number, because the mean of its divisors is an integer number (3536850).

Almost surely, 2^23555555 is an apocalyptic number.

23555555 is a deficient number, since it is larger than the sum of its proper divisors (4739245).

23555555 is a wasteful number, since it uses less digits than its factorization.

23555555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4693.

The product of its digits is 93750, while the sum is 35.

The square root of 23555555 is about 4853.4065356201. The cubic root of 23555555 is about 286.6582512102.

The spelling of 23555555 in words is "twenty-three million, five hundred fifty-five thousand, five hundred fifty-five".