455220023 has 4 divisors (see below), whose sum is σ = 455265288. Its totient is φ = 455174760.

The previous prime is 455220011. The next prime is 455220037. The reversal of 455220023 is 320022554.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 455220023 - 2⁸ = 455219767 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 (455220083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8 + ... + 30173.

It is an arithmetic number, because the mean of its divisors is an integer number (113816322).

Almost surely, 2^455220023 is an apocalyptic number.

455220023 is a deficient number, since it is larger than the sum of its proper divisors (45265).

455220023 is a wasteful number, since it uses less digits than its factorization.

455220023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45264.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 455220023 is about 21335.8858030315. The cubic root of 455220023 is about 769.2611245793.

Adding to 455220023 its reverse (320022554), we get a palindrome (775242577).

The spelling of 455220023 in words is "four hundred fifty-five million, two hundred twenty thousand, twenty-three".