23210455 has 4 divisors (see below), whose sum is σ = 27852552. Its totient is φ = 18568360.

The previous prime is 23210431. The next prime is 23210459. The reversal of 23210455 is 55401232.

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

It is not a de Polignac number, because 23210455 - 2¹⁷ = 23079383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23210459) by changing a digit.

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, 2321041 + ... + 2321050.

It is an arithmetic number, because the mean of its divisors is an integer number (6963138).

Almost surely, 2^23210455 is an apocalyptic number.

23210455 is a deficient number, since it is larger than the sum of its proper divisors (4642097).

23210455 is an equidigital number, since it uses as much as digits as its factorization.

23210455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4642096.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 23210455 is about 4817.7230098876. The cubic root of 23210455 is about 285.2514657562.

Adding to 23210455 its reverse (55401232), we get a palindrome (78611687).

The spelling of 23210455 in words is "twenty-three million, two hundred ten thousand, four hundred fifty-five".