2021544051 has 8 divisors (see below), whose sum is σ = 2700233424. Its totient is φ = 1345275360.

The previous prime is 2021544047. The next prime is 2021544097. The reversal of 2021544051 is 1504451202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2021544051 - 2² = 2021544047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2021545051) 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 7 ways as a sum of consecutive naturals, for example, 603220 + ... + 606561.

It is an arithmetic number, because the mean of its divisors is an integer number (337529178).

Almost surely, 2^2021544051 is an apocalyptic number.

2021544051 is a deficient number, since it is larger than the sum of its proper divisors (678689373).

2021544051 is a wasteful number, since it uses less digits than its factorization.

2021544051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210341.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 2021544051 is about 44961.5841691549. The cubic root of 2021544051 is about 1264.4288695434.

Adding to 2021544051 its reverse (1504451202), we get a palindrome (3525995253).

The spelling of 2021544051 in words is "two billion, twenty-one million, five hundred forty-four thousand, fifty-one".