2021233253 has 8 divisors (see below), whose sum is σ = 2180272248. Its totient is φ = 1862702784.

The previous prime is 2021233187. The next prime is 2021233259. The reversal of 2021233253 is 3523321202.

It can be written as a sum of positive squares in 4 ways, for example, as 53246209 + 1967987044 = 7297^2 + 44362^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021233253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021233259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118850 + ... + 134787.

It is an arithmetic number, because the mean of its divisors is an integer number (272534031).

Almost surely, 2^2021233253 is an apocalyptic number.

It is an amenable number.

2021233253 is a deficient number, since it is larger than the sum of its proper divisors (159038995).

2021233253 is a wasteful number, since it uses less digits than its factorization.

2021233253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254263.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 2021233253 is about 44958.1277746305. The cubic root of 2021233253 is about 1264.3640672446.

Adding to 2021233253 its reverse (3523321202), we get a palindrome (5544554455).

The spelling of 2021233253 in words is "two billion, twenty-one million, two hundred thirty-three thousand, two hundred fifty-three".