2021242550 has 12 divisors (see below), whose sum is σ = 3759511236. Its totient is φ = 808497000.

The previous prime is 2021242541. The next prime is 2021242589. The reversal of 2021242550 is 552421202.

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, 20212376 + ... + 20212475.

It is an arithmetic number, because the mean of its divisors is an integer number (313292603).

Almost surely, 2^2021242550 is an apocalyptic number.

2021242550 is a deficient number, since it is larger than the sum of its proper divisors (1738268686).

2021242550 is a wasteful number, since it uses less digits than its factorization.

2021242550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40424863 (or 40424858 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 2021242550 is about 44958.2311707211. The cubic root of 2021242550 is about 1264.3660057929.

Adding to 2021242550 its reverse (552421202), we get a palindrome (2573663752).

The spelling of 2021242550 in words is "two billion, twenty-one million, two hundred forty-two thousand, five hundred fifty".