325255531 has 2 divisors, whose sum is σ = 325255532. Its totient is φ = 325255530.

The previous prime is 325255523. The next prime is 325255537. The reversal of 325255531 is 135552523.

It is a strong prime.

It is an emirp because it is prime and its reverse (135552523) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 325255531 - 2³ = 325255523 is a prime.

It is a super-2 number, since 2×325255531² = 211582320892183922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 325255493 and 325255502.

It is not a weakly prime, because it can be changed into another prime (325255537) 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 as a sum of consecutive naturals, namely, 162627765 + 162627766.

It is an arithmetic number, because the mean of its divisors is an integer number (162627766).

Almost surely, 2^325255531 is an apocalyptic number.

325255531 is a deficient number, since it is larger than the sum of its proper divisors (1).

325255531 is an equidigital number, since it uses as much as digits as its factorization.

325255531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22500, while the sum is 31.

The square root of 325255531 is about 18034.8421395919. The cubic root of 325255531 is about 687.7145774725.

It can be divided in two parts, 325255 and 531, that multiplied together give a triangular number (172710405 = T₁₈₅₈₅).

The spelling of 325255531 in words is "three hundred twenty-five million, two hundred fifty-five thousand, five hundred thirty-one".