325243553 has 4 divisors (see below), whose sum is σ = 329360640. Its totient is φ = 321126468.

The previous prime is 325243549. The next prime is 325243559. The reversal of 325243553 is 355342523.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 355342523 = 967 ⋅367469.

It is not a de Polignac number, because 325243553 - 2² = 325243549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (325243559) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2058425 + ... + 2058582.

It is an arithmetic number, because the mean of its divisors is an integer number (82340160).

Almost surely, 2^325243553 is an apocalyptic number.

It is an amenable number.

325243553 is a deficient number, since it is larger than the sum of its proper divisors (4117087).

325243553 is an equidigital number, since it uses as much as digits as its factorization.

325243553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4117086.

The product of its digits is 54000, while the sum is 32.

The square root of 325243553 is about 18034.5100571100. The cubic root of 325243553 is about 687.7061353446.

The spelling of 325243553 in words is "three hundred twenty-five million, two hundred forty-three thousand, five hundred fifty-three".