325555520 has 28 divisors (see below), whose sum is σ = 775229844. Its totient is φ = 130222080.

The previous prime is 325555463. The next prime is 325555541. The reversal of 325555520 is 25555523.

It can be written as a sum of positive squares in 2 ways, for example, as 175933696 + 149621824 = 13264^2 + 12232^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

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, 508361 + ... + 509000.

Almost surely, 2^325555520 is an apocalyptic number.

It is an amenable number.

325555520 is an abundant number, since it is smaller than the sum of its proper divisors (449674324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

325555520 is a wasteful number, since it uses less digits than its factorization.

325555520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017378 (or 1017368 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 32.

The square root of 325555520 is about 18043.1571516739. The cubic root of 325555520 is about 687.9259429932.

The spelling of 325555520 in words is "three hundred twenty-five million, five hundred fifty-five thousand, five hundred twenty".