515050540531 has 12 divisors (see below), whose sum is σ = 525060801160. Its totient is φ = 505227715200.

The previous prime is 515050540507. The next prime is 515050540559. The reversal of 515050540531 is 135045050515.

It is a de Polignac number, because none of the positive numbers 2^k-515050540531 is a prime.

It is a super-2 number, since 2×515050540531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (515050540331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15879931 + ... + 15912331.

Almost surely, 2^515050540531 is an apocalyptic number.

515050540531 is a deficient number, since it is larger than the sum of its proper divisors (10010260629).

515050540531 is an equidigital number, since it uses as much as digits as its factorization.

515050540531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38166 (or 38113 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 34.

The spelling of 515050540531 in words is "five hundred fifteen billion, fifty million, five hundred forty thousand, five hundred thirty-one".