501047501 has 2 divisors, whose sum is σ = 501047502. Its totient is φ = 501047500.

The previous prime is 501047453. The next prime is 501047549. The reversal of 501047501 is 105740105.

It is a balanced prime because it is at equal distance from previous prime (501047453) and next prime (501047549).

It can be written as a sum of positive squares in only one way, i.e., 388050601 + 112996900 = 19699^2 + 10630^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501047501 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 (501044501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250523750 + 250523751.

It is an arithmetic number, because the mean of its divisors is an integer number (250523751).

Almost surely, 2^501047501 is an apocalyptic number.

It is an amenable number.

501047501 is a deficient number, since it is larger than the sum of its proper divisors (1).

501047501 is an equidigital number, since it uses as much as digits as its factorization.

501047501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 501047501 is about 22384.0903545353. The cubic root of 501047501 is about 794.2544074329.

Adding to 501047501 its reverse (105740105), we get a palindrome (606787606).

The spelling of 501047501 in words is "five hundred one million, forty-seven thousand, five hundred one".