516060021 has 16 divisors (see below), whose sum is σ = 700237440. Its totient is φ = 337995840.

The previous prime is 516060019. The next prime is 516060031. The reversal of 516060021 is 120060615.

It is a happy number.

It is not a de Polignac number, because 516060021 - 2¹ = 516060019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 516060021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516060031) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 58275 + ... + 66543.

It is an arithmetic number, because the mean of its divisors is an integer number (43764840).

Almost surely, 2^516060021 is an apocalyptic number.

It is an amenable number.

516060021 is a deficient number, since it is larger than the sum of its proper divisors (184177419).

516060021 is a wasteful number, since it uses less digits than its factorization.

516060021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8636.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 516060021 is about 22716.9544833809. The cubic root of 516060021 is about 802.1090293788.

The spelling of 516060021 in words is "five hundred sixteen million, sixty thousand, twenty-one".