518411057 has 4 divisors (see below), whose sum is σ = 519467376. Its totient is φ = 517354740.

The previous prime is 518411021. The next prime is 518411059. The reversal of 518411057 is 750114815.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 750114815 = 5 ⋅150022963.

It is a cyclic number.

It is not a de Polignac number, because 518411057 - 2²⁸ = 249975601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (518411059) 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, 527423 + ... + 528404.

It is an arithmetic number, because the mean of its divisors is an integer number (129866844).

Almost surely, 2^518411057 is an apocalyptic number.

It is an amenable number.

518411057 is a deficient number, since it is larger than the sum of its proper divisors (1056319).

518411057 is a wasteful number, since it uses less digits than its factorization.

518411057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056318.

The product of its (nonzero) digits is 5600, while the sum is 32.

The square root of 518411057 is about 22768.6419665293. The cubic root of 518411057 is about 803.3252514161.

The spelling of 518411057 in words is "five hundred eighteen million, four hundred eleven thousand, fifty-seven".