325561111 has 4 divisors (see below), whose sum is σ = 326258712. Its totient is φ = 324863512.

The previous prime is 325561097. The next prime is 325561141. The reversal of 325561111 is 111165523.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 325561111 - 2⁵ = 325561079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325561141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348100 + ... + 349033.

It is an arithmetic number, because the mean of its divisors is an integer number (81564678).

Almost surely, 2^325561111 is an apocalyptic number.

325561111 is a deficient number, since it is larger than the sum of its proper divisors (697601).

325561111 is an equidigital number, since it uses as much as digits as its factorization.

325561111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697600.

The product of its digits is 900, while the sum is 25.

The square root of 325561111 is about 18043.3120850913. The cubic root of 325561111 is about 687.9298810536.

The spelling of 325561111 in words is "three hundred twenty-five million, five hundred sixty-one thousand, one hundred eleven".