515526340061 has 2 divisors, whose sum is σ = 515526340062. Its totient is φ = 515526340060.

The previous prime is 515526340039. The next prime is 515526340139. The reversal of 515526340061 is 160043625515.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 451469767225 + 64056572836 = 671915^2 + 253094^2 .

It is a cyclic number.

It is not a de Polignac number, because 515526340061 - 2¹⁴ = 515526323677 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 515526339997 and 515526340024.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (515526349061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257763170030 + 257763170031.

It is an arithmetic number, because the mean of its divisors is an integer number (257763170031).

Almost surely, 2^515526340061 is an apocalyptic number.

It is an amenable number.

515526340061 is a deficient number, since it is larger than the sum of its proper divisors (1).

515526340061 is an equidigital number, since it uses as much as digits as its factorization.

515526340061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 38.

Adding to 515526340061 its reverse (160043625515), we get a palindrome (675569965576).

The spelling of 515526340061 in words is "five hundred fifteen billion, five hundred twenty-six million, three hundred forty thousand, sixty-one".