325221019 has 6 divisors (see below), whose sum is σ = 326952276. Its totient is φ = 323498880.

The previous prime is 325220971. The next prime is 325221049. The reversal of 325221019 is 910122523.

It is a happy number.

It is not a de Polignac number, because 325221019 - 2¹⁵ = 325188251 is a prime.

It is a super-2 number, since 2×325221019² = 211537422398796722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 325220984 and 325221002.

It is not an unprimeable number, because it can be changed into a prime (325221049) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32884 + ... + 41614.

It is an arithmetic number, because the mean of its divisors is an integer number (54492046).

Almost surely, 2^325221019 is an apocalyptic number.

325221019 is a deficient number, since it is larger than the sum of its proper divisors (1731257).

325221019 is an frugal number, since it uses more digits than its factorization.

325221019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9117 (or 8924 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 325221019 is about 18033.8852996241. The cubic root of 325221019 is about 687.6902527567.

The spelling of 325221019 in words is "three hundred twenty-five million, two hundred twenty-one thousand, nineteen".