325905421 has 4 divisors (see below), whose sum is σ = 326135872. Its totient is φ = 325674972.

The previous prime is 325905409. The next prime is 325905431. The reversal of 325905421 is 124509523.

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.

It is a cyclic number.

It is not a de Polignac number, because 325905421 - 2²¹ = 323808269 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 (325905431) 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, 113091 + ... + 115936.

It is an arithmetic number, because the mean of its divisors is an integer number (81533968).

Almost surely, 2^325905421 is an apocalyptic number.

It is an amenable number.

325905421 is a deficient number, since it is larger than the sum of its proper divisors (230451).

325905421 is a wasteful number, since it uses less digits than its factorization.

325905421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230450.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 325905421 is about 18052.8507721080. The cubic root of 325905421 is about 688.1723114072.

The spelling of 325905421 in words is "three hundred twenty-five million, nine hundred five thousand, four hundred twenty-one".