551150220 has 48 divisors (see below), whose sum is σ = 1596440160. Its totient is φ = 141904896.

The previous prime is 551150203. The next prime is 551150231. The reversal of 551150220 is 22051155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156637 + ... + 160116.

It is an arithmetic number, because the mean of its divisors is an integer number (33259170).

Almost surely, 2^551150220 is an apocalyptic number.

It is an amenable number.

551150220 is an abundant number, since it is smaller than the sum of its proper divisors (1045289940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551150220 is a wasteful number, since it uses less digits than its factorization.

551150220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316794 (or 316792 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 551150220 is about 23476.5887641284. The cubic root of 551150220 is about 819.8920242518.

The spelling of 551150220 in words is "five hundred fifty-one million, one hundred fifty thousand, two hundred twenty".