325772772569 has 2 divisors, whose sum is σ = 325772772570. Its totient is φ = 325772772568.

The previous prime is 325772772551. The next prime is 325772772583. The reversal of 325772772569 is 965277277523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224657040400 + 101115732169 = 473980^2 + 317987^2 .

It is a cyclic number.

It is not a de Polignac number, because 325772772569 - 2¹⁶ = 325772707033 is a prime.

It is a super-2 number, since 2×325772772569² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (325772772469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162886386284 + 162886386285.

It is an arithmetic number, because the mean of its divisors is an integer number (162886386285).

Almost surely, 2^325772772569 is an apocalyptic number.

It is an amenable number.

325772772569 is a deficient number, since it is larger than the sum of its proper divisors (1).

325772772569 is an equidigital number, since it uses as much as digits as its factorization.

325772772569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77792400, while the sum is 62.

The spelling of 325772772569 in words is "three hundred twenty-five billion, seven hundred seventy-two million, seven hundred seventy-two thousand, five hundred sixty-nine".