329561225 has 12 divisors (see below), whose sum is σ = 467035584. Its totient is φ = 225984720.

The previous prime is 329561149. The next prime is 329561231. The reversal of 329561225 is 522165923.

It is not a de Polignac number, because 329561225 - 2¹⁶ = 329495689 is a prime.

It is a super-2 number, since 2×329561225² = 217221202047001250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 941429 + ... + 941778.

It is an arithmetic number, because the mean of its divisors is an integer number (38919632).

Almost surely, 2^329561225 is an apocalyptic number.

329561225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

329561225 is a deficient number, since it is larger than the sum of its proper divisors (137474359).

329561225 is a wasteful number, since it uses less digits than its factorization.

329561225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883224 (or 1883219 counting only the distinct ones).

The product of its digits is 32400, while the sum is 35.

The square root of 329561225 is about 18153.8212230924. The cubic root of 329561225 is about 690.7359123139.

The spelling of 329561225 in words is "three hundred twenty-nine million, five hundred sixty-one thousand, two hundred twenty-five".