252530507 has 4 divisors (see below), whose sum is σ = 253587360. Its totient is φ = 251473656.

The previous prime is 252530503. The next prime is 252530519. The reversal of 252530507 is 705035252.

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

It is a cyclic number.

It is not a de Polignac number, because 252530507 - 2² = 252530503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252530507.

It is not an unprimeable number, because it can be changed into a prime (252530503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528068 + ... + 528545.

It is an arithmetic number, because the mean of its divisors is an integer number (63396840).

Almost surely, 2^252530507 is an apocalyptic number.

252530507 is a deficient number, since it is larger than the sum of its proper divisors (1056853).

252530507 is a wasteful number, since it uses less digits than its factorization.

252530507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056852.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 252530507 is about 15891.2084814214. The cubic root of 252530507 is about 632.0788862634.

Adding to 252530507 its reverse (705035252), we get a palindrome (957565759).

The spelling of 252530507 in words is "two hundred fifty-two million, five hundred thirty thousand, five hundred seven".