515042427 has 16 divisors (see below), whose sum is σ = 721340928. Its totient is φ = 326251200.

The previous prime is 515042419. The next prime is 515042461. The reversal of 515042427 is 724240515.

It is not a de Polignac number, because 515042427 - 2³ = 515042419 is a prime.

It is a super-2 number, since 2×515042427² = 530537403220100658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 515042394 and 515042403.

It is not an unprimeable number, because it can be changed into a prime (515042417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14298 + ... + 35135.

It is an arithmetic number, because the mean of its divisors is an integer number (45083808).

Almost surely, 2^515042427 is an apocalyptic number.

515042427 is a deficient number, since it is larger than the sum of its proper divisors (206298501).

515042427 is a wasteful number, since it uses less digits than its factorization.

515042427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49610.

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 515042427 is about 22694.5461950663. The cubic root of 515042427 is about 801.5814690304.

The spelling of 515042427 in words is "five hundred fifteen million, forty-two thousand, four hundred twenty-seven".