220255001 has 4 divisors (see below), whose sum is σ = 220972752. Its totient is φ = 219537252.

The previous prime is 220254997. The next prime is 220255033. The reversal of 220255001 is 100552022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220255001 - 2² = 220254997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220255051) 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, 358415 + ... + 359028.

It is an arithmetic number, because the mean of its divisors is an integer number (55243188).

Almost surely, 2^220255001 is an apocalyptic number.

It is an amenable number.

220255001 is a deficient number, since it is larger than the sum of its proper divisors (717751).

220255001 is an equidigital number, since it uses as much as digits as its factorization.

220255001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717750.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 220255001 is about 14840.9905666704. The cubic root of 220255001 is about 603.9142249509.

The spelling of 220255001 in words is "two hundred twenty million, two hundred fifty-five thousand, one".