455220213 has 32 divisors (see below), whose sum is σ = 735436800. Its totient is φ = 244918080.

The previous prime is 455220191. The next prime is 455220289. The reversal of 455220213 is 312022554.

It is not a de Polignac number, because 455220213 - 2⁶ = 455220149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455220113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14638 + ... + 33536.

It is an arithmetic number, because the mean of its divisors is an integer number (22982400).

Almost surely, 2^455220213 is an apocalyptic number.

It is an amenable number.

455220213 is a deficient number, since it is larger than the sum of its proper divisors (280216587).

455220213 is a wasteful number, since it uses less digits than its factorization.

455220213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18977.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 455220213 is about 21335.8902556233. The cubic root of 455220213 is about 769.2612316042.

Adding to 455220213 its reverse (312022554), we get a palindrome (767242767).

The spelling of 455220213 in words is "four hundred fifty-five million, two hundred twenty thousand, two hundred thirteen".