515053018 has 8 divisors (see below), whose sum is σ = 772678548. Its totient is φ = 257493504.

The previous prime is 515053001. The next prime is 515053027. The reversal of 515053018 is 810350515.

It can be written as a sum of positive squares in 2 ways, for example, as 427124889 + 87928129 = 20667^2 + 9377^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×515053018² = 530559222701816648, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15130 + ... + 35482.

Almost surely, 2^515053018 is an apocalyptic number.

515053018 is a deficient number, since it is larger than the sum of its proper divisors (257625530).

515053018 is a wasteful number, since it uses less digits than its factorization.

515053018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33008.

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 515053018 is about 22694.7795318659. The cubic root of 515053018 is about 801.5869633940.

The spelling of 515053018 in words is "five hundred fifteen million, fifty-three thousand, eighteen".