515057 has 4 divisors (see below), whose sum is σ = 516516. Its totient is φ = 513600.

The previous prime is 515041. The next prime is 515087. The reversal of 515057 is 750515.

515057 is nontrivially palindromic in base 7.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 456976 + 58081 = 676^2 + 241^2 .

It is a cyclic number.

It is not a de Polignac number, because 515057 - 2⁴ = 515041 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 515057.

It is not an unprimeable number, because it can be changed into a prime (515087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173 + ... + 1029.

It is an arithmetic number, because the mean of its divisors is an integer number (129129).

2⁵¹⁵⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

515057 is a deficient number, since it is larger than the sum of its proper divisors (1459).

515057 is an equidigital number, since it uses as much as digits as its factorization.

515057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458.

The product of its (nonzero) digits is 875, while the sum is 23.

The square root of 515057 is about 717.6747174034. The cubic root of 515057 is about 80.1589029143.

The spelling of 515057 in words is "five hundred fifteen thousand, fifty-seven".