325521442 has 16 divisors (see below), whose sum is σ = 498103992. Its totient is φ = 159494400.

The previous prime is 325521409. The next prime is 325521479. The reversal of 325521442 is 244125523.

It can be written as a sum of positive squares in 4 ways, for example, as 194853681 + 130667761 = 13959^2 + 11431^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 325521442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126028 + ... + 128584.

Almost surely, 2^325521442 is an apocalyptic number.

325521442 is a deficient number, since it is larger than the sum of its proper divisors (172582550).

325521442 is a wasteful number, since it uses less digits than its factorization.

325521442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3813.

The product of its digits is 9600, while the sum is 28.

The square root of 325521442 is about 18042.2127800334. The cubic root of 325521442 is about 687.9019389377.

Adding to 325521442 its reverse (244125523), we get a palindrome (569646965).

The spelling of 325521442 in words is "three hundred twenty-five million, five hundred twenty-one thousand, four hundred forty-two".