7326020561 has 4 divisors (see below), whose sum is σ = 7326309300. Its totient is φ = 7325731824.

The previous prime is 7326020549. The next prime is 7326020573. The reversal of 7326020561 is 1650206237.

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

It is an interprime number because it is at equal distance from previous prime (7326020549) and next prime (7326020573).

It can be written as a sum of positive squares in 2 ways, for example, as 3549180625 + 3776839936 = 59575^2 + 61456^2 .

It is a cyclic number.

It is not a de Polignac number, because 7326020561 - 2¹⁰ = 7326019537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7326020521) 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, 102206 + ... + 158423.

It is an arithmetic number, because the mean of its divisors is an integer number (1831577325).

Almost surely, 2^7326020561 is an apocalyptic number.

It is an amenable number.

7326020561 is a deficient number, since it is larger than the sum of its proper divisors (288739).

7326020561 is a wasteful number, since it uses less digits than its factorization.

7326020561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288738.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 7326020561 is about 85592.1758164845. The cubic root of 7326020561 is about 1942.1795535309.

Adding to 7326020561 its reverse (1650206237), we get a palindrome (8976226798).

The spelling of 7326020561 in words is "seven billion, three hundred twenty-six million, twenty thousand, five hundred sixty-one".