2020215550 has 24 divisors (see below), whose sum is σ = 3849253632. Its totient is φ = 788376000.

The previous prime is 2020215481. The next prime is 2020215559. The reversal of 2020215550 is 555120202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020215559) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 490686 + ... + 494785.

It is an arithmetic number, because the mean of its divisors is an integer number (160385568).

Almost surely, 2^2020215550 is an apocalyptic number.

2020215550 is a deficient number, since it is larger than the sum of its proper divisors (1829038082).

2020215550 is a wasteful number, since it uses less digits than its factorization.

2020215550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985524 (or 985519 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 2020215550 is about 44946.8080067984. The cubic root of 2020215550 is about 1264.1518266691.

Adding to 2020215550 its reverse (555120202), we get a palindrome (2575335752).

The spelling of 2020215550 in words is "two billion, twenty million, two hundred fifteen thousand, five hundred fifty".