325040557 has 2 divisors, whose sum is σ = 325040558. Its totient is φ = 325040556.

The previous prime is 325040509. The next prime is 325040567. The reversal of 325040557 is 755040523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225420196 + 99620361 = 15014^2 + 9981^2 .

It is a cyclic number.

It is not a de Polignac number, because 325040557 - 2¹¹ = 325038509 is a prime.

It is a super-3 number, since 3×325040557³ (a number of 27 digits) contains 333 as substring.

It is equal to p_17532409 and since 325040557 and 17532409 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325040567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162520278 + 162520279.

It is an arithmetic number, because the mean of its divisors is an integer number (162520279).

Almost surely, 2^325040557 is an apocalyptic number.

It is an amenable number.

325040557 is a deficient number, since it is larger than the sum of its proper divisors (1).

325040557 is an equidigital number, since it uses as much as digits as its factorization.

325040557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 325040557 is about 18028.8811910224. The cubic root of 325040557 is about 687.5630316645.

The spelling of 325040557 in words is "three hundred twenty-five million, forty thousand, five hundred fifty-seven".