65325881 has 2 divisors, whose sum is σ = 65325882. Its totient is φ = 65325880.

The previous prime is 65325877. The next prime is 65325913. The reversal of 65325881 is 18852356.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35295481 + 30030400 = 5941^2 + 5480^2 .

It is a cyclic number.

It is not a de Polignac number, because 65325881 - 2² = 65325877 is a prime.

It is a super-2 number, since 2×65325881² = 8534941456852322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65325851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32662940 + 32662941.

It is an arithmetic number, because the mean of its divisors is an integer number (32662941).

Almost surely, 2^65325881 is an apocalyptic number.

It is an amenable number.

65325881 is a deficient number, since it is larger than the sum of its proper divisors (1).

65325881 is an equidigital number, since it uses as much as digits as its factorization.

65325881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 38.

The square root of 65325881 is about 8082.4427619378. The cubic root of 65325881 is about 402.7433935476.

The spelling of 65325881 in words is "sixty-five million, three hundred twenty-five thousand, eight hundred eighty-one".