325886261 has 2 divisors, whose sum is σ = 325886262. Its totient is φ = 325886260.

The previous prime is 325886257. The next prime is 325886273. The reversal of 325886261 is 162688523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212868100 + 113018161 = 14590^2 + 10631^2 .

It is a cyclic number.

It is not a de Polignac number, because 325886261 - 2² = 325886257 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325886221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162943130 + 162943131.

It is an arithmetic number, because the mean of its divisors is an integer number (162943131).

Almost surely, 2^325886261 is an apocalyptic number.

It is an amenable number.

325886261 is a deficient number, since it is larger than the sum of its proper divisors (1).

325886261 is an equidigital number, since it uses as much as digits as its factorization.

325886261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 41.

The square root of 325886261 is about 18052.3201001976. The cubic root of 325886261 is about 688.1588252452.

The spelling of 325886261 in words is "three hundred twenty-five million, eight hundred eighty-six thousand, two hundred sixty-one".