652611 has 8 divisors (see below), whose sum is σ = 890560. Its totient is φ = 424872.

The previous prime is 652609. The next prime is 652621. The reversal of 652611 is 116256.

652611 = 41² + 42² + ... + 126².

It is a happy number.

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

It is not a de Polignac number, because 652611 - 2¹ = 652609 is a prime.

It is a super-2 number, since 2×652611² = 851802234642, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (652601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2401 + ... + 2658.

It is an arithmetic number, because the mean of its divisors is an integer number (111320).

2⁶⁵²⁶¹¹ is an apocalyptic number.

652611 is a deficient number, since it is larger than the sum of its proper divisors (237949).

652611 is a wasteful number, since it uses less digits than its factorization.

652611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5105.

The product of its digits is 360, while the sum is 21.

The square root of 652611 is about 807.8434254235. The cubic root of 652611 is about 86.7397427709.

Adding to 652611 its reverse (116256), we get a palindrome (768867).

The spelling of 652611 in words is "six hundred fifty-two thousand, six hundred eleven".