328585725 has 36 divisors (see below), whose sum is σ = 633810996. Its totient is φ = 161763840.

The previous prime is 328585723. The next prime is 328585739. The reversal of 328585725 is 527585823.

328585725 is a `hidden beast` number, since 3 + 28 + 58 + 572 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 6095961 + 322489764 = 2469^2 + 17958^2 .

It is not a de Polignac number, because 328585725 - 2¹ = 328585723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328585723) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 53244 + ... + 59093.

It is an arithmetic number, because the mean of its divisors is an integer number (17605861).

Almost surely, 2^328585725 is an apocalyptic number.

It is an amenable number.

328585725 is a deficient number, since it is larger than the sum of its proper divisors (305225271).

328585725 is a wasteful number, since it uses less digits than its factorization.

328585725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112366 (or 112358 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 328585725 is about 18126.9336899543. The cubic root of 328585725 is about 690.0537135249.

It can be divided in two parts, 32858 and 5725, that added together give a palindrome (38583).

The spelling of 328585725 in words is "three hundred twenty-eight million, five hundred eighty-five thousand, seven hundred twenty-five".