506100989 has 2 divisors, whose sum is σ = 506100990. Its totient is φ = 506100988.

The previous prime is 506100943. The next prime is 506101003. The reversal of 506100989 is 989001605.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 277788889 + 228312100 = 16667^2 + 15110^2 .

It is a cyclic number.

It is not a de Polignac number, because 506100989 - 2⁸ = 506100733 is a prime.

It is a super-2 number, since 2×506100989² = 512276422133556242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506100919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253050494 + 253050495.

It is an arithmetic number, because the mean of its divisors is an integer number (253050495).

Almost surely, 2^506100989 is an apocalyptic number.

It is an amenable number.

506100989 is a deficient number, since it is larger than the sum of its proper divisors (1).

506100989 is an equidigital number, since it uses as much as digits as its factorization.

506100989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 506100989 is about 22496.6884007402. The cubic root of 506100989 is about 796.9157227611.

The spelling of 506100989 in words is "five hundred six million, one hundred thousand, nine hundred eighty-nine".