652564061 has 4 divisors (see below), whose sum is σ = 675066300. Its totient is φ = 630061824.

The previous prime is 652564051. The next prime is 652564093. The reversal of 652564061 is 160465256.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 523036900 + 129527161 = 22870^2 + 11381^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-652564061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652564051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11251076 + ... + 11251133.

It is an arithmetic number, because the mean of its divisors is an integer number (168766575).

Almost surely, 2^652564061 is an apocalyptic number.

It is an amenable number.

652564061 is a deficient number, since it is larger than the sum of its proper divisors (22502239).

652564061 is a wasteful number, since it uses less digits than its factorization.

652564061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22502238.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 652564061 is about 25545.3334485968. Note that the first 3 decimals coincide. The cubic root of 652564061 is about 867.3766313780.

It can be divided in two parts, 6525 and 64061, that multiplied together give a square (417998025 = 20445²).

The spelling of 652564061 in words is "six hundred fifty-two million, five hundred sixty-four thousand, sixty-one".