1555230200 has 24 divisors (see below), whose sum is σ = 3615910680. Its totient is φ = 622092000.

The previous prime is 1555230191. The next prime is 1555230211. The reversal of 1555230200 is 20325551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3887876 + ... + 3888275.

It is an arithmetic number, because the mean of its divisors is an integer number (150662945).

Almost surely, 2^1555230200 is an apocalyptic number.

1555230200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1555230200 is an abundant number, since it is smaller than the sum of its proper divisors (2060680480).

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

1555230200 is a wasteful number, since it uses less digits than its factorization.

1555230200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7776167 (or 7776158 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 1555230200 is about 39436.4070371529. The cubic root of 1555230200 is about 1158.5947609071.

Adding to 1555230200 its reverse (20325551), we get a palindrome (1575555751).

The spelling of 1555230200 in words is "one billion, five hundred fifty-five million, two hundred thirty thousand, two hundred".