326048561 has 4 divisors (see below), whose sum is σ = 326100852. Its totient is φ = 325996272.

The previous prime is 326048509. The next prime is 326048579. The reversal of 326048561 is 165840623.

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 219958561 + 106090000 = 14831^2 + 10300^2 .

It is a cyclic number.

It is not a de Polignac number, because 326048561 - 2¹⁰ = 326047537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (326048761) 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, 15290 + ... + 29763.

It is an arithmetic number, because the mean of its divisors is an integer number (81525213).

Almost surely, 2^326048561 is an apocalyptic number.

It is an amenable number.

326048561 is a deficient number, since it is larger than the sum of its proper divisors (52291).

326048561 is an equidigital number, since it uses as much as digits as its factorization.

326048561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52290.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 326048561 is about 18056.8148077118. The cubic root of 326048561 is about 688.2730467335.

The spelling of 326048561 in words is "three hundred twenty-six million, forty-eight thousand, five hundred sixty-one".