515276993 has 12 divisors (see below), whose sum is σ = 653895792. Its totient is φ = 401514120.

The previous prime is 515276989. The next prime is 515276999. The reversal of 515276993 is 399672515.

It is not a de Polignac number, because 515276993 - 2² = 515276989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (515276999) 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 in 11 ways as a sum of consecutive naturals, for example, 477455 + ... + 478532.

It is an arithmetic number, because the mean of its divisors is an integer number (54491316).

Almost surely, 2^515276993 is an apocalyptic number.

It is an amenable number.

515276993 is a deficient number, since it is larger than the sum of its proper divisors (138618799).

515276993 is a wasteful number, since it uses less digits than its factorization.

515276993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956012 (or 956005 counting only the distinct ones).

The product of its digits is 510300, while the sum is 47.

The square root of 515276993 is about 22699.7135003947. The cubic root of 515276993 is about 801.7031387624.

The spelling of 515276993 in words is "five hundred fifteen million, two hundred seventy-six thousand, nine hundred ninety-three".