455221403 has 16 divisors (see below), whose sum is σ = 569775360. Its totient is φ = 354066336.

The previous prime is 455221379. The next prime is 455221411. The reversal of 455221403 is 304122554.

It is a happy number.

It is not a de Polignac number, because 455221403 - 2⁶ = 455221339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (455221423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37025 + ... + 47762.

It is an arithmetic number, because the mean of its divisors is an integer number (35610960).

Almost surely, 2^455221403 is an apocalyptic number.

455221403 is a deficient number, since it is larger than the sum of its proper divisors (114553957).

455221403 is a wasteful number, since it uses less digits than its factorization.

455221403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84866.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 455221403 is about 21335.9181428876. The cubic root of 455221403 is about 769.2619019171.

Adding to 455221403 its reverse (304122554), we get a palindrome (759343957).

The spelling of 455221403 in words is "four hundred fifty-five million, two hundred twenty-one thousand, four hundred three".