455220520 has 16 divisors (see below), whose sum is σ = 1024246260. Its totient is φ = 182088192.

The previous prime is 455220517. The next prime is 455220527. The reversal of 455220520 is 25022554.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 421973764 + 33246756 = 20542^2 + 5766^2 .

It is not an unprimeable number, because it can be changed into a prime (455220527) 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, 5690217 + ... + 5690296.

Almost surely, 2^455220520 is an apocalyptic number.

455220520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

455220520 is an abundant number, since it is smaller than the sum of its proper divisors (569025740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

455220520 is a wasteful number, since it uses less digits than its factorization.

455220520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11380524 (or 11380520 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 455220520 is about 21335.8974500723. The cubic root of 455220520 is about 769.2614045338.

The spelling of 455220520 in words is "four hundred fifty-five million, two hundred twenty thousand, five hundred twenty".