506606651 has 2 divisors, whose sum is σ = 506606652. Its totient is φ = 506606650.

The previous prime is 506606621. The next prime is 506606677. The reversal of 506606651 is 156606605.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-506606651 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (506606621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253303325 + 253303326.

It is an arithmetic number, because the mean of its divisors is an integer number (253303326).

Almost surely, 2^506606651 is an apocalyptic number.

506606651 is a deficient number, since it is larger than the sum of its proper divisors (1).

506606651 is an equidigital number, since it uses as much as digits as its factorization.

506606651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 506606651 is about 22507.9241823852. The cubic root of 506606651 is about 797.1810425785.

The spelling of 506606651 in words is "five hundred six million, six hundred six thousand, six hundred fifty-one".