455465221 has 4 divisors (see below), whose sum is σ = 455680492. Its totient is φ = 455249952.

The previous prime is 455465201. The next prime is 455465249. The reversal of 455465221 is 122564554.

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

It can be written as a sum of positive squares in 2 ways, for example, as 62236321 + 393228900 = 7889^2 + 19830^2 .

It is a cyclic number.

It is not a de Polignac number, because 455465221 - 2¹³ = 455457029 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 (455465201) 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, 104430 + ... + 108703.

It is an arithmetic number, because the mean of its divisors is an integer number (113920123).

Almost surely, 2^455465221 is an apocalyptic number.

It is an amenable number.

455465221 is a deficient number, since it is larger than the sum of its proper divisors (215271).

455465221 is a wasteful number, since it uses less digits than its factorization.

455465221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215270.

The product of its digits is 48000, while the sum is 34.

The square root of 455465221 is about 21341.6311700863. The cubic root of 455465221 is about 769.3992170941.

The spelling of 455465221 in words is "four hundred fifty-five million, four hundred sixty-five thousand, two hundred twenty-one".