1827305556 has 12 divisors (see below), whose sum is σ = 4263712992. Its totient is φ = 609101848.

The previous prime is 1827305549. The next prime is 1827305561. The reversal of 1827305556 is 6555037281.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76137720 + ... + 76137743.

It is an arithmetic number, because the mean of its divisors is an integer number (355309416).

Almost surely, 2^1827305556 is an apocalyptic number.

It is an amenable number.

1827305556 is an abundant number, since it is smaller than the sum of its proper divisors (2436407436).

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

1827305556 is a wasteful number, since it uses less digits than its factorization.

1827305556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152275470 (or 152275468 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 42.

The square root of 1827305556 is about 42746.9947013822. The cubic root of 1827305556 is about 1222.5605889986.

The spelling of 1827305556 in words is "one billion, eight hundred twenty-seven million, three hundred five thousand, five hundred fifty-six".