652521 has 8 divisors (see below), whose sum is σ = 875200. Its totient is φ = 432432.

The previous prime is 652507. The next prime is 652541. The reversal of 652521 is 125256.

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

It is not a de Polignac number, because 652521 - 2¹⁴ = 636137 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (652541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51 + ... + 1143.

It is an arithmetic number, because the mean of its divisors is an integer number (109400).

2⁶⁵²⁵²¹ is an apocalyptic number.

It is an amenable number.

652521 is a deficient number, since it is larger than the sum of its proper divisors (222679).

652521 is a wasteful number, since it uses less digits than its factorization.

652521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295.

The product of its digits is 600, while the sum is 21.

The square root of 652521 is about 807.7877196393. The cubic root of 652521 is about 86.7357552318.

Adding to 652521 its reverse (125256), we get a palindrome (777777).

The spelling of 652521 in words is "six hundred fifty-two thousand, five hundred twenty-one".