52235021 has 4 divisors (see below), whose sum is σ = 52249500. Its totient is φ = 52220544.

The previous prime is 52235011. The next prime is 52235039. The reversal of 52235021 is 12053225.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 12859396 + 39375625 = 3586^2 + 6275^2 .

It is a cyclic number.

It is not a de Polignac number, because 52235021 - 2¹⁰ = 52233997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52234984 and 52235002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52235011) 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, 3005 + ... + 10653.

It is an arithmetic number, because the mean of its divisors is an integer number (13062375).

Almost surely, 2^52235021 is an apocalyptic number.

It is an amenable number.

52235021 is a deficient number, since it is larger than the sum of its proper divisors (14479).

52235021 is an equidigital number, since it uses as much as digits as its factorization.

52235021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14478.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 52235021 is about 7227.3799540359. The cubic root of 52235021 is about 373.8125901971.

Adding to 52235021 its reverse (12053225), we get a palindrome (64288246).

The spelling of 52235021 in words is "fifty-two million, two hundred thirty-five thousand, twenty-one".