52530372 has 18 divisors (see below), whose sum is σ = 132785198. Its totient is φ = 17510112.

The previous prime is 52530371. The next prime is 52530377. The reversal of 52530372 is 27303525.

It can be written as a sum of positive squares in only one way, i.e., 41679936 + 10850436 = 6456^2 + 3294^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52530371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 729553 + ... + 729624.

Almost surely, 2^52530372 is an apocalyptic number.

It is an amenable number.

52530372 is an abundant number, since it is smaller than the sum of its proper divisors (80254826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52530372 is a wasteful number, since it uses less digits than its factorization.

52530372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459187 (or 1459182 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 52530372 is about 7247.7839371769. The cubic root of 52530372 is about 374.5158124355.

Adding to 52530372 its reverse (27303525), we get a palindrome (79833897).

The spelling of 52530372 in words is "fifty-two million, five hundred thirty thousand, three hundred seventy-two".