1055555228 has 96 divisors (see below), whose sum is σ = 2463842304. Its totient is φ = 383781888.

The previous prime is 1055555167. The next prime is 1055555231. The reversal of 1055555228 is 8225555501.

It is a super-2 number, since 2×1055555228² = 2228393678716263968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1055555191 and 1055555200.

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, 264101 + ... + 268067.

It is an arithmetic number, because the mean of its divisors is an integer number (25665024).

Almost surely, 2^1055555228 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 1055555228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1231921152).

1055555228 is an abundant number, since it is smaller than the sum of its proper divisors (1408287076).

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

1055555228 is a wasteful number, since it uses less digits than its factorization.

1055555228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4051 (or 4049 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 38.

The square root of 1055555228 is about 32489.3094417225. The cubic root of 1055555228 is about 1018.1856853952.

The spelling of 1055555228 in words is "one billion, fifty-five million, five hundred fifty-five thousand, two hundred twenty-eight".