1550211020 has 12 divisors (see below), whose sum is σ = 3255443184. Its totient is φ = 620084400.

The previous prime is 1550211001. The next prime is 1550211041. The reversal of 1550211020 is 201120551.

It is a self number, because there is not a number n which added to its sum of digits gives 1550211020.

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 3 ways as a sum of consecutive naturals, for example, 38755256 + ... + 38755295.

It is an arithmetic number, because the mean of its divisors is an integer number (271286932).

Almost surely, 2^1550211020 is an apocalyptic number.

1550211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1550211020 is an abundant number, since it is smaller than the sum of its proper divisors (1705232164).

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

1550211020 is a wasteful number, since it uses less digits than its factorization.

1550211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77510560 (or 77510558 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 1550211020 is about 39372.7192355316. The cubic root of 1550211020 is about 1157.3470436521.

Adding to 1550211020 its reverse (201120551), we get a palindrome (1751331571).

The spelling of 1550211020 in words is "one billion, five hundred fifty million, two hundred eleven thousand, twenty".