2021652273 has 4 divisors (see below), whose sum is σ = 2695536368. Its totient is φ = 1347768180.

The previous prime is 2021652253. The next prime is 2021652317. The reversal of 2021652273 is 3722561202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2021652273 - 2¹³ = 2021644081 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021652273.

It is not an unprimeable number, because it can be changed into a prime (2021652203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336942043 + ... + 336942048.

It is an arithmetic number, because the mean of its divisors is an integer number (673884092).

Almost surely, 2^2021652273 is an apocalyptic number.

It is an amenable number.

2021652273 is a deficient number, since it is larger than the sum of its proper divisors (673884095).

2021652273 is an equidigital number, since it uses as much as digits as its factorization.

2021652273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673884094.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 2021652273 is about 44962.7876471199. The cubic root of 2021652273 is about 1264.4514325902.

The spelling of 2021652273 in words is "two billion, twenty-one million, six hundred fifty-two thousand, two hundred seventy-three".