220924855 has 4 divisors (see below), whose sum is σ = 265109832. Its totient is φ = 176739880.

The previous prime is 220924853. The next prime is 220924883. The reversal of 220924855 is 558429022.

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

It is not a de Polignac number, because 220924855 - 2¹ = 220924853 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 (220924853) 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, 22092481 + ... + 22092490.

It is an arithmetic number, because the mean of its divisors is an integer number (66277458).

Almost surely, 2^220924855 is an apocalyptic number.

220924855 is a deficient number, since it is larger than the sum of its proper divisors (44184977).

220924855 is an equidigital number, since it uses as much as digits as its factorization.

220924855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44184976.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 220924855 is about 14863.5411325834. The cubic root of 220924855 is about 604.5258265794.

The spelling of 220924855 in words is "two hundred twenty million, nine hundred twenty-four thousand, eight hundred fifty-five".