1556808852 has 24 divisors (see below), whose sum is σ = 3823741600. Its totient is φ = 491623776.

The previous prime is 1556808829. The next prime is 1556808853. The reversal of 1556808852 is 2588086551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1556808853) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3413827 + ... + 3414282.

Almost surely, 2^1556808852 is an apocalyptic number.

1556808852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1556808852 is an abundant number, since it is smaller than the sum of its proper divisors (2266932748).

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

1556808852 is a wasteful number, since it uses less digits than its factorization.

1556808852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6828135 (or 6828133 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 48.

The square root of 1556808852 is about 39456.4171206662. The cubic root of 1556808852 is about 1158.9866427500.

The spelling of 1556808852 in words is "one billion, five hundred fifty-six million, eight hundred eight thousand, eight hundred fifty-two".