501065441 has 2 divisors, whose sum is σ = 501065442. Its totient is φ = 501065440.

The previous prime is 501065399. The next prime is 501065443. The reversal of 501065441 is 144560105.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381381841 + 119683600 = 19529^2 + 10940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501065441 is a prime.

Together with 501065443, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 501065441.

It is not a weakly prime, because it can be changed into another prime (501065443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250532720 + 250532721.

It is an arithmetic number, because the mean of its divisors is an integer number (250532721).

Almost surely, 2^501065441 is an apocalyptic number.

It is an amenable number.

501065441 is a deficient number, since it is larger than the sum of its proper divisors (1).

501065441 is an equidigital number, since it uses as much as digits as its factorization.

501065441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 501065441 is about 22384.4910819969. The cubic root of 501065441 is about 794.2638867430.

The spelling of 501065441 in words is "five hundred one million, sixty-five thousand, four hundred forty-one".