328551 has 4 divisors (see below), whose sum is σ = 438072. Its totient is φ = 219032.

The previous prime is 328543. The next prime is 328579. The reversal of 328551 is 155823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 155823 = 3 ⋅51941.

It is a cyclic number.

It is not a de Polignac number, because 328551 - 2³ = 328543 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328511) 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, 54756 + ... + 54761.

It is an arithmetic number, because the mean of its divisors is an integer number (109518).

2³²⁸⁵⁵¹ is an apocalyptic number.

328551 is a deficient number, since it is larger than the sum of its proper divisors (109521).

328551 is a wasteful number, since it uses less digits than its factorization.

328551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109520.

The product of its digits is 1200, while the sum is 24.

The square root of 328551 is about 573.1936845430. The cubic root of 328551 is about 69.0029404334.

The spelling of 328551 in words is "three hundred twenty-eight thousand, five hundred fifty-one".