252530425 has 48 divisors (see below), whose sum is σ = 384082560. Its totient is φ = 160842240.

The previous prime is 252530419. The next prime is 252530429. The reversal of 252530425 is 524035252.

It is not a de Polignac number, because 252530425 - 2⁷ = 252530297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 252530393 and 252530402.

It is not an unprimeable number, because it can be changed into a prime (252530429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 175509 + ... + 176941.

It is an arithmetic number, because the mean of its divisors is an integer number (8001720).

Almost surely, 2^252530425 is an apocalyptic number.

252530425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252530425 is a deficient number, since it is larger than the sum of its proper divisors (131552135).

252530425 is a wasteful number, since it uses less digits than its factorization.

252530425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522 (or 1517 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 252530425 is about 15891.2059013783. The cubic root of 252530425 is about 632.0788178486.

Adding to 252530425 its reverse (524035252), we get a palindrome (776565677).

The spelling of 252530425 in words is "two hundred fifty-two million, five hundred thirty thousand, four hundred twenty-five".