52513522 has 4 divisors (see below), whose sum is σ = 78770286. Its totient is φ = 26256760.

The previous prime is 52513507. The next prime is 52513529. The reversal of 52513522 is 22531525.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 46117681 + 6395841 = 6791^2 + 2529^2 .

It is not an unprimeable number, because it can be changed into a prime (52513529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13128379 + ... + 13128382.

Almost surely, 2^52513522 is an apocalyptic number.

52513522 is a deficient number, since it is larger than the sum of its proper divisors (26256764).

52513522 is a wasteful number, since it uses less digits than its factorization.

52513522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26256763.

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

The square root of 52513522 is about 7246.6214196686. The cubic root of 52513522 is about 374.4757640719.

It can be divided in two parts, 52513 and 522, that added together give a palindrome (53035).

The spelling of 52513522 in words is "fifty-two million, five hundred thirteen thousand, five hundred twenty-two".