220555455 has 8 divisors (see below), whose sum is σ = 352888752. Its totient is φ = 117629568.

The previous prime is 220555429. The next prime is 220555493. The reversal of 220555455 is 554555022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220555455 - 2¹⁴ = 220539071 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7351834 + ... + 7351863.

It is an arithmetic number, because the mean of its divisors is an integer number (44111094).

Almost surely, 2^220555455 is an apocalyptic number.

220555455 is a deficient number, since it is larger than the sum of its proper divisors (132333297).

220555455 is a wasteful number, since it uses less digits than its factorization.

220555455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14703705.

The product of its (nonzero) digits is 50000, while the sum is 33.

The square root of 220555455 is about 14851.1095545080. The cubic root of 220555455 is about 604.1887037754.

The spelling of 220555455 in words is "two hundred twenty million, five hundred fifty-five thousand, four hundred fifty-five".