516555442 has 16 divisors (see below), whose sum is σ = 848117592. Its totient is φ = 234501120.

The previous prime is 516555419. The next prime is 516555467. The reversal of 516555442 is 244555615.

It can be written as a sum of positive squares in 4 ways, for example, as 364008241 + 152547201 = 19079^2 + 12351^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161263 + ... + 164434.

Almost surely, 2^516555442 is an apocalyptic number.

516555442 is a deficient number, since it is larger than the sum of its proper divisors (331562150).

516555442 is a wasteful number, since it uses less digits than its factorization.

516555442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325773.

The product of its digits is 120000, while the sum is 37.

The square root of 516555442 is about 22727.8560801498. The cubic root of 516555442 is about 802.3656239259.

The spelling of 516555442 in words is "five hundred sixteen million, five hundred fifty-five thousand, four hundred forty-two".