501271049 has 2 divisors, whose sum is σ = 501271050. Its totient is φ = 501271048.

The previous prime is 501271007. The next prime is 501271073. The reversal of 501271049 is 940172105.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 305131024 + 196140025 = 17468^2 + 14005^2 .

It is a cyclic number.

It is not a de Polignac number, because 501271049 - 2⁸ = 501270793 is a prime.

It is not a weakly prime, because it can be changed into another prime (501271349) 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, 250635524 + 250635525.

It is an arithmetic number, because the mean of its divisors is an integer number (250635525).

Almost surely, 2^501271049 is an apocalyptic number.

It is an amenable number.

501271049 is a deficient number, since it is larger than the sum of its proper divisors (1).

501271049 is an equidigital number, since it uses as much as digits as its factorization.

501271049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 501271049 is about 22389.0832550152. The cubic root of 501271049 is about 794.3725117274.

The spelling of 501271049 in words is "five hundred one million, two hundred seventy-one thousand, forty-nine".