516423655 has 16 divisors (see below), whose sum is σ = 677258784. Its totient is φ = 374906880.

The previous prime is 516423643. The next prime is 516423697. The reversal of 516423655 is 556324615.

It is not a de Polignac number, because 516423655 - 2¹⁹ = 515899367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23599 + ... + 39871.

It is an arithmetic number, because the mean of its divisors is an integer number (42328674).

Almost surely, 2^516423655 is an apocalyptic number.

516423655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

516423655 is a deficient number, since it is larger than the sum of its proper divisors (160835129).

516423655 is a wasteful number, since it uses less digits than its factorization.

516423655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16866.

The product of its digits is 108000, while the sum is 37.

The square root of 516423655 is about 22724.9566556242. The cubic root of 516423655 is about 802.2973832018.

The spelling of 516423655 in words is "five hundred sixteen million, four hundred twenty-three thousand, six hundred fifty-five".