515016001 has 2 divisors, whose sum is σ = 515016002. Its totient is φ = 515016000.

The previous prime is 515015993. The next prime is 515016041. The reversal of 515016001 is 100610515.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 456890625 + 58125376 = 21375^2 + 7624^2 .

It is a cyclic number.

It is not a de Polignac number, because 515016001 - 2³ = 515015993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 515016001.

It is not a weakly prime, because it can be changed into another prime (515016041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257508000 + 257508001.

It is an arithmetic number, because the mean of its divisors is an integer number (257508001).

Almost surely, 2^515016001 is an apocalyptic number.

It is an amenable number.

515016001 is a deficient number, since it is larger than the sum of its proper divisors (1).

515016001 is an equidigital number, since it uses as much as digits as its factorization.

515016001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 515016001 is about 22693.9639772341. The cubic root of 515016001 is about 801.5677595099.

Adding to 515016001 its reverse (100610515), we get a palindrome (615626516).

The spelling of 515016001 in words is "five hundred fifteen million, sixteen thousand, one".