252504330 has 64 divisors (see below), whose sum is σ = 654635520. Its totient is φ = 61963776.

The previous prime is 252504323. The next prime is 252504341. The reversal of 252504330 is 33405252.

It is a self number, because there is not a number n which added to its sum of digits gives 252504330.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 158719 + ... + 160301.

It is an arithmetic number, because the mean of its divisors is an integer number (10228680).

Almost surely, 2^252504330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252504330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327317760).

252504330 is an abundant number, since it is smaller than the sum of its proper divisors (402131190).

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

252504330 is a wasteful number, since it uses less digits than its factorization.

252504330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 252504330 is about 15890.3848285685. The cubic root of 252504330 is about 632.0570453369.

Adding to 252504330 its reverse (33405252), we get a palindrome (285909582).

The spelling of 252504330 in words is "two hundred fifty-two million, five hundred four thousand, three hundred thirty".