1020335550 has 96 divisors (see below), whose sum is σ = 2813153280. Its totient is φ = 243043200.

The previous prime is 1020335513. The next prime is 1020335611. The reversal of 1020335550 is 555330201.

It is a self number, because there is not a number n which added to its sum of digits gives 1020335550.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52011 + ... + 68889.

It is an arithmetic number, because the mean of its divisors is an integer number (29303680).

Almost surely, 2^1020335550 is an apocalyptic number.

1020335550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020335550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1406576640).

1020335550 is an abundant number, since it is smaller than the sum of its proper divisors (1792817730).

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

1020335550 is a wasteful number, since it uses less digits than its factorization.

1020335550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16938 (or 16933 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 1020335550 is about 31942.6916523952. The cubic root of 1020335550 is about 1006.7330805464.

Adding to 1020335550 its reverse (555330201), we get a palindrome (1575665751).

It can be divided in two parts, 10203 and 35550, that added together give a triangular number (45753 = T₃₀₂).

The spelling of 1020335550 in words is "one billion, twenty million, three hundred thirty-five thousand, five hundred fifty".