576551220 has 96 divisors (see below), whose sum is σ = 1857386496. Its totient is φ = 130896000.

The previous prime is 576551207. The next prime is 576551251. The reversal of 576551220 is 22155675.

576551220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×576551220² = 664822618566976800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58875 + ... + 67965.

It is an arithmetic number, because the mean of its divisors is an integer number (19347776).

Almost surely, 2^576551220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 576551220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (928693248).

576551220 is an abundant number, since it is smaller than the sum of its proper divisors (1280835276).

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

576551220 is a wasteful number, since it uses less digits than its factorization.

576551220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9261 (or 9259 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 576551220 is about 24011.4810038865. The cubic root of 576551220 is about 832.2988575187.

The spelling of 576551220 in words is "five hundred seventy-six million, five hundred fifty-one thousand, two hundred twenty".