325551 has 4 divisors (see below), whose sum is σ = 434072. Its totient is φ = 217032.

The previous prime is 325543. The next prime is 325571. The reversal of 325551 is 155523.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 325551 - 2³ = 325543 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325541) 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, 54256 + ... + 54261.

It is an arithmetic number, because the mean of its divisors is an integer number (108518).

2³²⁵⁵⁵¹ is an apocalyptic number.

325551 is a deficient number, since it is larger than the sum of its proper divisors (108521).

325551 is a wasteful number, since it uses less digits than its factorization.

325551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108520.

The product of its digits is 750, while the sum is 21.

The square root of 325551 is about 570.5707668642. The cubic root of 325551 is about 68.7922759266.

The spelling of 325551 in words is "three hundred twenty-five thousand, five hundred fifty-one".