652541233 has 4 divisors (see below), whose sum is σ = 661480228. Its totient is φ = 643602240.

The previous prime is 652541189. The next prime is 652541273. The reversal of 652541233 is 332145256.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 172580769 + 479960464 = 13137^2 + 21908^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-652541233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 652541195 and 652541204.

It is not an unprimeable number, because it can be changed into a prime (652541273) 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 3 ways as a sum of consecutive naturals, for example, 4469388 + ... + 4469533.

It is an arithmetic number, because the mean of its divisors is an integer number (165370057).

Almost surely, 2^652541233 is an apocalyptic number.

It is an amenable number.

652541233 is a deficient number, since it is larger than the sum of its proper divisors (8938995).

652541233 is an equidigital number, since it uses as much as digits as its factorization.

652541233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8938994.

The product of its digits is 21600, while the sum is 31.

The square root of 652541233 is about 25544.8866311832. The cubic root of 652541233 is about 867.3665170685.

Adding to 652541233 its reverse (332145256), we get a palindrome (984686489).

The spelling of 652541233 in words is "six hundred fifty-two million, five hundred forty-one thousand, two hundred thirty-three".