325451664 has 30 divisors (see below), whose sum is σ = 910813046. Its totient is φ = 108483840.

The previous prime is 325451663. The next prime is 325451669. The reversal of 325451664 is 466154523.

325451664 is a `hidden beast` number, since 32 + 54 + 516 + 64 = 666.

325451664 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 288728064 + 36723600 = 16992^2 + 6060^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325451663) 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 5 ways as a sum of consecutive naturals, for example, 1129897 + ... + 1130184.

Almost surely, 2^325451664 is an apocalyptic number.

It is an amenable number.

325451664 is an abundant number, since it is smaller than the sum of its proper divisors (585361382).

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

325451664 is a wasteful number, since it uses less digits than its factorization.

325451664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260095 (or 2260086 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 325451664 is about 18040.2789335420. The cubic root of 325451664 is about 687.8527830855.

The spelling of 325451664 in words is "three hundred twenty-five million, four hundred fifty-one thousand, six hundred sixty-four".