2053532021 has 8 divisors (see below), whose sum is σ = 2132020920. Its totient is φ = 1975555008.

The previous prime is 2053532009. The next prime is 2053532053. The reversal of 2053532021 is 1202353502.

It can be written as a sum of positive squares in 4 ways, for example, as 49984900 + 2003547121 = 7070^2 + 44761^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2053532021 - 2⁶ = 2053531957 is a prime.

It is a super-2 number, since 2×2053532021² = 8433987522544688882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2053532071) 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, 119786 + ... + 135851.

It is an arithmetic number, because the mean of its divisors is an integer number (266502615).

Almost surely, 2^2053532021 is an apocalyptic number.

It is an amenable number.

2053532021 is a deficient number, since it is larger than the sum of its proper divisors (78488899).

2053532021 is a wasteful number, since it uses less digits than its factorization.

2053532021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255943.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 2053532021 is about 45315.9135514225. The cubic root of 2053532021 is about 1271.0632427408.

Adding to 2053532021 its reverse (1202353502), we get a palindrome (3255885523).

The spelling of 2053532021 in words is "two billion, fifty-three million, five hundred thirty-two thousand, twenty-one".