325550664 has 40 divisors (see below), whose sum is σ = 911845110. Its totient is φ = 108516672.

The previous prime is 325550639. The next prime is 325550669. The reversal of 325550664 is 466055523.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 265364100 + 60186564 = 16290^2 + 7758^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (325550669) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 250549 + ... + 251844.

Almost surely, 2^325550664 is an apocalyptic number.

It is an amenable number.

325550664 is an abundant number, since it is smaller than the sum of its proper divisors (586294446).

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

325550664 is a wasteful number, since it uses less digits than its factorization.

325550664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502411 (or 502398 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The square root of 325550664 is about 18043.0225849219. The cubic root of 325550664 is about 687.9225225986.

The spelling of 325550664 in words is "three hundred twenty-five million, five hundred fifty thousand, six hundred sixty-four".