52509370 has 16 divisors (see below), whose sum is σ = 94684968. Its totient is φ = 20966400.

The previous prime is 52509329. The next prime is 52509371. The reversal of 52509370 is 7390525.

It is a happy number.

52509370 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 46744569 + 5764801 = 6837^2 + 2401^2 .

It is not an unprimeable number, because it can be changed into a prime (52509371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1642 + ... + 10378.

Almost surely, 2^52509370 is an apocalyptic number.

52509370 is a deficient number, since it is larger than the sum of its proper divisors (42175598).

52509370 is a wasteful number, since it uses less digits than its factorization.

52509370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9345.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 52509370 is about 7246.3349356761. The cubic root of 52509370 is about 374.4658944594.

Adding to 52509370 its reverse (7390525), we get a palindrome (59899895).

The spelling of 52509370 in words is "fifty-two million, five hundred nine thousand, three hundred seventy".