23420555 has 8 divisors (see below), whose sum is σ = 29326752. Its totient is φ = 17921728.

The previous prime is 23420533. The next prime is 23420563. The reversal of 23420555 is 55502432.

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 23420555 - 2¹⁰ = 23419531 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101714 + ... + 101943.

It is an arithmetic number, because the mean of its divisors is an integer number (3665844).

Almost surely, 2^23420555 is an apocalyptic number.

23420555 is a deficient number, since it is larger than the sum of its proper divisors (5906197).

23420555 is a wasteful number, since it uses less digits than its factorization.

23420555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203685.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 23420555 is about 4839.4787942505. The cubic root of 23420555 is about 286.1095762495.

Adding to 23420555 its reverse (55502432), we get a palindrome (78922987).

The spelling of 23420555 in words is "twenty-three million, four hundred twenty thousand, five hundred fifty-five".