220454455 has 32 divisors (see below), whose sum is σ = 291723264. Its totient is φ = 158944896.

The previous prime is 220454449. The next prime is 220454459. The reversal of 220454455 is 554454022.

It is a cyclic number.

It is not a de Polignac number, because 220454455 - 2⁷ = 220454327 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 (220454459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 971052 + ... + 971278.

It is an arithmetic number, because the mean of its divisors is an integer number (9116352).

Almost surely, 2^220454455 is an apocalyptic number.

220454455 is a deficient number, since it is larger than the sum of its proper divisors (71268809).

220454455 is a wasteful number, since it uses less digits than its factorization.

220454455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535.

The product of its (nonzero) digits is 32000, while the sum is 31.

The square root of 220454455 is about 14847.7087457964. The cubic root of 220454455 is about 604.0964633661.

The spelling of 220454455 in words is "two hundred twenty million, four hundred fifty-four thousand, four hundred fifty-five".