20325087361 has 4 divisors (see below), whose sum is σ = 20331045972. Its totient is φ = 20319128752.

The previous prime is 20325087359. The next prime is 20325087403. The reversal of 20325087361 is 16378052302.

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 12308571136 + 8016516225 = 110944^2 + 89535^2 .

It is a cyclic number.

It is not a de Polignac number, because 20325087361 - 2¹ = 20325087359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20325087361.

It is not an unprimeable number, because it can be changed into a prime (20325087301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2974186 + ... + 2981011.

It is an arithmetic number, because the mean of its divisors is an integer number (5082761493).

Almost surely, 2^20325087361 is an apocalyptic number.

It is an amenable number.

20325087361 is a deficient number, since it is larger than the sum of its proper divisors (5958611).

20325087361 is an equidigital number, since it uses as much as digits as its factorization.

20325087361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5958610.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 20325087361 in words is "twenty billion, three hundred twenty-five million, eighty-seven thousand, three hundred sixty-one".