325530251 has 4 divisors (see below), whose sum is σ = 326303904. Its totient is φ = 324756600.

The previous prime is 325530223. The next prime is 325530281. The reversal of 325530251 is 152035523.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325530251 is a prime.

It is a super-2 number, since 2×325530251² = 211939888632246002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 325530251.

It is not an unprimeable number, because it can be changed into a prime (325530281) 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, 386195 + ... + 387036.

It is an arithmetic number, because the mean of its divisors is an integer number (81575976).

Almost surely, 2^325530251 is an apocalyptic number.

325530251 is a deficient number, since it is larger than the sum of its proper divisors (773653).

325530251 is an equidigital number, since it uses as much as digits as its factorization.

325530251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773652.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 325530251 is about 18042.4569003226. The cubic root of 325530251 is about 687.9081440318.

Adding to 325530251 its reverse (152035523), we get a palindrome (477565774).

The spelling of 325530251 in words is "three hundred twenty-five million, five hundred thirty thousand, two hundred fifty-one".