516888385 has 8 divisors (see below), whose sum is σ = 667978920. Its totient is φ = 381702144.

The previous prime is 516888367. The next prime is 516888391. The reversal of 516888385 is 583888615.

It can be written as a sum of positive squares in 4 ways, for example, as 60980481 + 455907904 = 7809^2 + 21352^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 516888385 - 2²⁷ = 382670657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3976000 + ... + 3976129.

It is an arithmetic number, because the mean of its divisors is an integer number (83497365).

Almost surely, 2^516888385 is an apocalyptic number.

It is an amenable number.

516888385 is a deficient number, since it is larger than the sum of its proper divisors (151090535).

516888385 is a wasteful number, since it uses less digits than its factorization.

516888385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7952147.

The product of its digits is 1843200, while the sum is 52.

The square root of 516888385 is about 22735.1794582757. The cubic root of 516888385 is about 802.5379737015.

The spelling of 516888385 in words is "five hundred sixteen million, eight hundred eighty-eight thousand, three hundred eighty-five".