652513 has 4 divisors (see below), whose sum is σ = 662320. Its totient is φ = 642708.

The previous prime is 652507. The next prime is 652541. The reversal of 652513 is 315256.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-652513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (652543) 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 3 ways as a sum of consecutive naturals, for example, 4803 + ... + 4936.

It is an arithmetic number, because the mean of its divisors is an integer number (165580).

2⁶⁵²⁵¹³ is an apocalyptic number.

It is an amenable number.

652513 is a deficient number, since it is larger than the sum of its proper divisors (9807).

652513 is an equidigital number, since it uses as much as digits as its factorization.

652513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9806.

The product of its digits is 900, while the sum is 22.

The square root of 652513 is about 807.7827678281. The cubic root of 652513 is about 86.7354007661.

Adding to 652513 its reverse (315256), we get a palindrome (967769).

The spelling of 652513 in words is "six hundred fifty-two thousand, five hundred thirteen".