52530210 has 24 divisors (see below), whose sum is σ = 136578780. Its totient is φ = 14008032.

The previous prime is 52530209. The next prime is 52530217. The reversal of 52530210 is 1203525.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 49322529 + 3207681 = 7023^2 + 1791^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52530217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 291745 + ... + 291924.

Almost surely, 2^52530210 is an apocalyptic number.

52530210 is an abundant number, since it is smaller than the sum of its proper divisors (84048570).

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

52530210 is a wasteful number, since it uses less digits than its factorization.

52530210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583682 (or 583679 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 52530210 is about 7247.7727613385. The cubic root of 52530210 is about 374.5154274415.

Adding to 52530210 its reverse (1203525), we get a palindrome (53733735).

The spelling of 52530210 in words is "fifty-two million, five hundred thirty thousand, two hundred ten".