252530545 has 8 divisors (see below), whose sum is σ = 308004840. Its totient is φ = 198712320.

The previous prime is 252530543. The next prime is 252530549. The reversal of 252530545 is 545035252.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3111696 + 249418849 = 1764^2 + 15793^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 252530545 - 2¹ = 252530543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252530543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413680 + ... + 414289.

It is an arithmetic number, because the mean of its divisors is an integer number (38500605).

Almost surely, 2^252530545 is an apocalyptic number.

It is an amenable number.

252530545 is a deficient number, since it is larger than the sum of its proper divisors (55474295).

252530545 is an equidigital number, since it uses as much as digits as its factorization.

252530545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828035.

The product of its (nonzero) digits is 30000, while the sum is 31.

The square root of 252530545 is about 15891.2096770510. The cubic root of 252530545 is about 632.0789179678.

Adding to 252530545 its reverse (545035252), we get a palindrome (797565797).

The spelling of 252530545 in words is "two hundred fifty-two million, five hundred thirty thousand, five hundred forty-five".