325406005 has 4 divisors (see below), whose sum is σ = 390487212. Its totient is φ = 260324800.

The previous prime is 325405999. The next prime is 325406021. The reversal of 325406005 is 500604523.

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 117527281 + 207878724 = 10841^2 + 14418^2 .

It is a de Polignac number, because none of the positive numbers 2^k-325406005 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32540596 + ... + 32540605.

It is an arithmetic number, because the mean of its divisors is an integer number (97621803).

Almost surely, 2^325406005 is an apocalyptic number.

It is an amenable number.

325406005 is a deficient number, since it is larger than the sum of its proper divisors (65081207).

325406005 is an equidigital number, since it uses as much as digits as its factorization.

325406005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65081206.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 325406005 is about 18039.0134153728. The cubic root of 325406005 is about 687.8206143156.

The spelling of 325406005 in words is "three hundred twenty-five million, four hundred six thousand, five".