1220884553 has 8 divisors (see below), whose sum is σ = 1395835200. Its totient is φ = 1046068560.

The previous prime is 1220884531. The next prime is 1220884579. The reversal of 1220884553 is 3554880221.

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

It is a cyclic number.

It is not a de Polignac number, because 1220884553 - 2⁸ = 1220884297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220884513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13418 + ... + 51203.

It is an arithmetic number, because the mean of its divisors is an integer number (174479400).

Almost surely, 2^1220884553 is an apocalyptic number.

It is an amenable number.

1220884553 is a deficient number, since it is larger than the sum of its proper divisors (174950647).

1220884553 is an equidigital number, since it uses as much as digits as its factorization.

1220884553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67327.

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 1220884553 is about 34941.1584381514. The cubic root of 1220884553 is about 1068.7879112528.

The spelling of 1220884553 in words is "one billion, two hundred twenty million, eight hundred eighty-four thousand, five hundred fifty-three".