325205553 has 4 divisors (see below), whose sum is σ = 433607408. Its totient is φ = 216803700.

The previous prime is 325205521. The next prime is 325205567. The reversal of 325205553 is 355502523.

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: 355502523 = 3 ⋅118500841.

It is not a de Polignac number, because 325205553 - 2⁵ = 325205521 is a prime.

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 325205553.

It is not an unprimeable number, because it can be changed into a prime (325205513) 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, 54200923 + ... + 54200928.

It is an arithmetic number, because the mean of its divisors is an integer number (108401852).

Almost surely, 2^325205553 is an apocalyptic number.

It is an amenable number.

325205553 is a deficient number, since it is larger than the sum of its proper divisors (108401855).

325205553 is a wasteful number, since it uses less digits than its factorization.

325205553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108401854.

The product of its (nonzero) digits is 22500, while the sum is 30.

The square root of 325205553 is about 18033.4564906454. The cubic root of 325205553 is about 687.6793514666.

The spelling of 325205553 in words is "three hundred twenty-five million, two hundred five thousand, five hundred fifty-three".