652520 has 32 divisors (see below), whose sum is σ = 1602720. Its totient is φ = 237120.

The previous prime is 652507. The next prime is 652541. The reversal of 652520 is 25256.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 652492 and 652501.

It is an unprimeable number.

652520 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 302 + ... + 1181.

It is an arithmetic number, because the mean of its divisors is an integer number (50085).

2⁶⁵²⁵²⁰ is an apocalyptic number.

It is an amenable number.

652520 is an abundant number, since it is smaller than the sum of its proper divisors (950200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

652520 is a wasteful number, since it uses less digits than its factorization.

652520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505 (or 1501 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 652520 is about 807.7871006645. The cubic root of 652520 is about 86.7357109237.

Adding to 652520 its reverse (25256), we get a palindrome (677776).

Subtracting from 652520 its reverse (25256), we obtain a square (627264 = 792²).

The spelling of 652520 in words is "six hundred fifty-two thousand, five hundred twenty".