325763561 has 2 divisors, whose sum is σ = 325763562. Its totient is φ = 325763560.

The previous prime is 325763527. The next prime is 325763621. The reversal of 325763561 is 165367523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315240025 + 10523536 = 17755^2 + 3244^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325763561 is a prime.

It is a super-2 number, since 2×325763561² = 212243795350801442, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (325763461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162881780 + 162881781.

It is an arithmetic number, because the mean of its divisors is an integer number (162881781).

Almost surely, 2^325763561 is an apocalyptic number.

It is an amenable number.

325763561 is a deficient number, since it is larger than the sum of its proper divisors (1).

325763561 is an equidigital number, since it uses as much as digits as its factorization.

325763561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 38.

The square root of 325763561 is about 18048.9213251097. The cubic root of 325763561 is about 688.0724477803.

The spelling of 325763561 in words is "three hundred twenty-five million, seven hundred sixty-three thousand, five hundred sixty-one".