52520533 has 4 divisors (see below), whose sum is σ = 56560588. Its totient is φ = 48480480.

The previous prime is 52520527. The next prime is 52520597. The reversal of 52520533 is 33502525.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32512804 + 20007729 = 5702^2 + 4473^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52520533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52520498 and 52520507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52520513) 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, 2020008 + ... + 2020033.

It is an arithmetic number, because the mean of its divisors is an integer number (14140147).

Almost surely, 2^52520533 is an apocalyptic number.

It is an amenable number.

52520533 is a deficient number, since it is larger than the sum of its proper divisors (4040055).

52520533 is a wasteful number, since it uses less digits than its factorization.

52520533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040054.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 52520533 is about 7247.1051461946. The cubic root of 52520533 is about 374.4924285592.

The spelling of 52520533 in words is "fifty-two million, five hundred twenty thousand, five hundred thirty-three".