325540431 has 8 divisors (see below), whose sum is σ = 482282160. Its totient is φ = 217026936.

The previous prime is 325540427. The next prime is 325540441. The reversal of 325540431 is 134045523.

325540431 is a `hidden beast` number, since 3 + 255 + 404 + 3 + 1 = 666.

It is not a de Polignac number, because 325540431 - 2² = 325540427 is a prime.

It is a super-2 number, since 2×325540431² = 211953144431331522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 12057053 = 325540431 / (3 + 2 + 5 + 5 + 4 + 0 + 4 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 325540395 and 325540404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325540441) 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 7 ways as a sum of consecutive naturals, for example, 6028500 + ... + 6028553.

It is an arithmetic number, because the mean of its divisors is an integer number (60285270).

Almost surely, 2^325540431 is an apocalyptic number.

325540431 is a deficient number, since it is larger than the sum of its proper divisors (156741729).

325540431 is a wasteful number, since it uses less digits than its factorization.

325540431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12057062 (or 12057056 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 325540431 is about 18042.7390104718. The cubic root of 325540431 is about 687.9153147242.

Adding to 325540431 its reverse (134045523), we get a palindrome (459585954).

The spelling of 325540431 in words is "three hundred twenty-five million, five hundred forty thousand, four hundred thirty-one".