220978552 has 16 divisors (see below), whose sum is σ = 415285200. Its totient is φ = 110235840.

The previous prime is 220978523. The next prime is 220978553. The reversal of 220978552 is 255879022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220978553) 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 3 ways as a sum of consecutive naturals, for example, 27949 + ... + 34972.

It is an arithmetic number, because the mean of its divisors is an integer number (25955325).

Almost surely, 2^220978552 is an apocalyptic number.

It is an amenable number.

220978552 is a deficient number, since it is larger than the sum of its proper divisors (194306648).

220978552 is a wasteful number, since it uses less digits than its factorization.

220978552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63366 (or 63362 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 220978552 is about 14865.3473555111. The cubic root of 220978552 is about 604.5748003866.

The spelling of 220978552 in words is "two hundred twenty million, nine hundred seventy-eight thousand, five hundred fifty-two".