23207255 has 4 divisors (see below), whose sum is σ = 27848712. Its totient is φ = 18565800.

The previous prime is 23207231. The next prime is 23207263. The reversal of 23207255 is 55270232.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 23207255 - 2²⁰ = 22158679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2320721 + ... + 2320730.

It is an arithmetic number, because the mean of its divisors is an integer number (6962178).

Almost surely, 2^23207255 is an apocalyptic number.

23207255 is a deficient number, since it is larger than the sum of its proper divisors (4641457).

23207255 is an equidigital number, since it uses as much as digits as its factorization.

23207255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4641456.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 23207255 is about 4817.3908913436. The cubic root of 23207255 is about 285.2383560514.

Adding to 23207255 its reverse (55270232), we get a palindrome (78477487).

The spelling of 23207255 in words is "twenty-three million, two hundred seven thousand, two hundred fifty-five".