652240522 has 8 divisors (see below), whose sum is σ = 987336900. Its totient is φ = 323128224.

The previous prime is 652240481. The next prime is 652240529. The reversal of 652240522 is 225042256.

It is a Cunningham number, because it is equal to 25539²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 652240521 + 1 = 25539^2 + 1^2 .

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

It is not an unprimeable number, because it can be changed into a prime (652240529) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1495747 + ... + 1496182.

Almost surely, 2^652240522 is an apocalyptic number.

652240522 is a deficient number, since it is larger than the sum of its proper divisors (335096378).

652240522 is a wasteful number, since it uses less digits than its factorization.

652240522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992040.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 652240522 is about 25539.0000195779. Note that the first 4 decimals coincide. The cubic root of 652240522 is about 867.2332602384.

Adding to 652240522 its reverse (225042256), we get a palindrome (877282778).

The spelling of 652240522 in words is "six hundred fifty-two million, two hundred forty thousand, five hundred twenty-two".