5235020521 has 8 divisors (see below), whose sum is σ = 5416363080. Its totient is φ = 5053732992.

The previous prime is 5235020513. The next prime is 5235020533. The reversal of 5235020521 is 1250205325.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 259693225 + 4975327296 = 16115^2 + 70536^2 .

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 5235020521 - 2³ = 5235020513 is a prime.

It is a super-2 number, since 2×5235020521² = 54810879710582222882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5235020321) 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, 306421 + ... + 323053.

It is an arithmetic number, because the mean of its divisors is an integer number (677045385).

Almost surely, 2^5235020521 is an apocalyptic number.

It is an amenable number.

5235020521 is a deficient number, since it is larger than the sum of its proper divisors (181342559).

5235020521 is a wasteful number, since it uses less digits than its factorization.

5235020521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27515.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 5235020521 is about 72353.4416665856. The cubic root of 5235020521 is about 1736.3587615377.

Adding to 5235020521 its reverse (1250205325), we get a palindrome (6485225846).

The spelling of 5235020521 in words is "five billion, two hundred thirty-five million, twenty thousand, five hundred twenty-one".