506490953 has 2 divisors, whose sum is σ = 506490954. Its totient is φ = 506490952.

The previous prime is 506490857. The next prime is 506490977. The reversal of 506490953 is 359094605.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 492262969 + 14227984 = 22187^2 + 3772^2 .

It is a cyclic number.

It is not a de Polignac number, because 506490953 - 2⁸ = 506490697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 506490953.

It is not a weakly prime, because it can be changed into another prime (506420953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253245476 + 253245477.

It is an arithmetic number, because the mean of its divisors is an integer number (253245477).

Almost surely, 2^506490953 is an apocalyptic number.

It is an amenable number.

506490953 is a deficient number, since it is larger than the sum of its proper divisors (1).

506490953 is an equidigital number, since it uses as much as digits as its factorization.

506490953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 506490953 is about 22505.3538741340. The cubic root of 506490953 is about 797.1203516563.

The spelling of 506490953 in words is "five hundred six million, four hundred ninety thousand, nine hundred fifty-three".