652504681 has 2 divisors, whose sum is σ = 652504682. Its totient is φ = 652504680.

The previous prime is 652504679. The next prime is 652504711. The reversal of 652504681 is 186405256.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 650709081 + 1795600 = 25509^2 + 1340^2 .

It is a cyclic number.

It is not a de Polignac number, because 652504681 - 2¹ = 652504679 is a prime.

It is a super-3 number, since 3×652504681³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 652504679, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 652504681.

It is not a weakly prime, because it can be changed into another prime (652504621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326252340 + 326252341.

It is an arithmetic number, because the mean of its divisors is an integer number (326252341).

Almost surely, 2^652504681 is an apocalyptic number.

It is an amenable number.

652504681 is a deficient number, since it is larger than the sum of its proper divisors (1).

652504681 is an equidigital number, since it uses as much as digits as its factorization.

652504681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 652504681 is about 25544.1711746535. The cubic root of 652504681 is about 867.3503216306.

The spelling of 652504681 in words is "six hundred fifty-two million, five hundred four thousand, six hundred eighty-one".