7325597561 has 8 divisors (see below), whose sum is σ = 7422724680. Its totient is φ = 7229037312.

The previous prime is 7325597537. The next prime is 7325597563. The reversal of 7325597561 is 1657955237.

It can be written as a sum of positive squares in 4 ways, for example, as 1837751161 + 5487846400 = 42869^2 + 74080^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7325597561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7325597563) 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, 115670 + ... + 167423.

It is an arithmetic number, because the mean of its divisors is an integer number (927840585).

Almost surely, 2^7325597561 is an apocalyptic number.

It is an amenable number.

7325597561 is a deficient number, since it is larger than the sum of its proper divisors (97127119).

7325597561 is a wasteful number, since it uses less digits than its factorization.

7325597561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283435.

The product of its digits is 1984500, while the sum is 50.

The square root of 7325597561 is about 85589.7047605610. The cubic root of 7325597561 is about 1942.1421727202.

The spelling of 7325597561 in words is "seven billion, three hundred twenty-five million, five hundred ninety-seven thousand, five hundred sixty-one".