52330521 has 4 divisors (see below), whose sum is σ = 69774032. Its totient is φ = 34887012.

The previous prime is 52330517. The next prime is 52330549. The reversal of 52330521 is 12503325.

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 52330521 - 2² = 52330517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52330571) 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, 8721751 + ... + 8721756.

It is an arithmetic number, because the mean of its divisors is an integer number (17443508).

Almost surely, 2^52330521 is an apocalyptic number.

It is an amenable number.

52330521 is a deficient number, since it is larger than the sum of its proper divisors (17443511).

52330521 is a wasteful number, since it uses less digits than its factorization.

52330521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17443510.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 52330521 is about 7233.9837572392. The cubic root of 52330521 is about 374.0402622826.

Adding to 52330521 its reverse (12503325), we get a palindrome (64833846).

The spelling of 52330521 in words is "fifty-two million, three hundred thirty thousand, five hundred twenty-one".