325537645 has 8 divisors (see below), whose sum is σ = 394513560. Its totient is φ = 257851200.

The previous prime is 325537643. The next prime is 325537661. The reversal of 325537645 is 546735523.

It can be written as a sum of positive squares in 4 ways, for example, as 70241161 + 255296484 = 8381^2 + 15978^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 325537645 - 2¹ = 325537643 is a prime.

It is a super-3 number, since 3×325537645³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 325537598 and 325537607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325537643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321810 + ... + 322819.

It is an arithmetic number, because the mean of its divisors is an integer number (49314195).

Almost surely, 2^325537645 is an apocalyptic number.

It is an amenable number.

325537645 is a deficient number, since it is larger than the sum of its proper divisors (68975915).

325537645 is a wasteful number, since it uses less digits than its factorization.

325537645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644735.

The product of its digits is 378000, while the sum is 40.

The square root of 325537645 is about 18042.6618047338. The cubic root of 325537645 is about 687.9133523079.

The spelling of 325537645 in words is "three hundred twenty-five million, five hundred thirty-seven thousand, six hundred forty-five".