325378881 has 12 divisors (see below), whose sum is σ = 471692052. Its totient is φ = 216134496.

The previous prime is 325378847. The next prime is 325378891. The reversal of 325378881 is 188873523.

325378881 = 473² + 474² + ... + 1026².

325378881 is a `hidden beast` number, since 32 + 537 + 8 + 8 + 81 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 218566656 + 106812225 = 14784^2 + 10335^2 .

It is not a de Polignac number, because 325378881 - 2⁶ = 325378817 is a prime.

It is a super-2 number, since 2×325378881² = 211742832401624322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (325378891) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 62766 + ... + 67751.

It is an arithmetic number, because the mean of its divisors is an integer number (39307671).

Almost surely, 2^325378881 is an apocalyptic number.

It is an amenable number.

325378881 is a deficient number, since it is larger than the sum of its proper divisors (146313171).

325378881 is a wasteful number, since it uses less digits than its factorization.

325378881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130800 (or 130797 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 325378881 is about 18038.2615847537. The cubic root of 325378881 is about 687.8015028421.

The spelling of 325378881 in words is "three hundred twenty-five million, three hundred seventy-eight thousand, eight hundred eighty-one".