501055601 has 2 divisors, whose sum is σ = 501055602. Its totient is φ = 501055600.

The previous prime is 501055567. The next prime is 501055619. The reversal of 501055601 is 106550105.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 499567201 + 1488400 = 22351^2 + 1220^2 .

It is a cyclic number.

It is not a de Polignac number, because 501055601 - 2¹⁸ = 500793457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (501055661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250527800 + 250527801.

It is an arithmetic number, because the mean of its divisors is an integer number (250527801).

Almost surely, 2^501055601 is an apocalyptic number.

It is an amenable number.

501055601 is a deficient number, since it is larger than the sum of its proper divisors (1).

501055601 is an equidigital number, since it uses as much as digits as its factorization.

501055601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 501055601 is about 22384.2712858829. The cubic root of 501055601 is about 794.2586874170.

The spelling of 501055601 in words is "five hundred one million, fifty-five thousand, six hundred one".