652531 has 8 divisors (see below), whose sum is σ = 718704. Its totient is φ = 587520.

The previous prime is 652507. The next prime is 652541. The reversal of 652531 is 135256.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 652531 - 2⁵ = 652499 is a prime.

It is a super-2 number, since 2×652531² = 851593411922, which contains 22 as substring.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1291 + ... + 1723.

It is an arithmetic number, because the mean of its divisors is an integer number (89838).

2⁶⁵²⁵³¹ is an apocalyptic number.

652531 is a deficient number, since it is larger than the sum of its proper divisors (66173).

652531 is a wasteful number, since it uses less digits than its factorization.

652531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581.

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

The square root of 652531 is about 807.7939093605. The cubic root of 652531 is about 86.7361983098.

Adding to 652531 its reverse (135256), we get a palindrome (787787).

It can be divided in two parts, 6525 and 31, that added together give a palindrome (6556).

The spelling of 652531 in words is "six hundred fifty-two thousand, five hundred thirty-one".