326166225 has 48 divisors (see below), whose sum is σ = 672337920. Its totient is φ = 135547200.

The previous prime is 326166209. The next prime is 326166227. The reversal of 326166225 is 522661623.

It is not a de Polignac number, because 326166225 - 2⁴ = 326166209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (326166227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22465 + ... + 34014.

It is an arithmetic number, because the mean of its divisors is an integer number (14007040).

Almost surely, 2^326166225 is an apocalyptic number.

326166225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

326166225 is an abundant number, since it is smaller than the sum of its proper divisors (346171695).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

326166225 is a wasteful number, since it uses less digits than its factorization.

326166225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56510 (or 56505 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 326166225 is about 18060.0726742724. The cubic root of 326166225 is about 688.3558311502.

The spelling of 326166225 in words is "three hundred twenty-six million, one hundred sixty-six thousand, two hundred twenty-five".