616305506 has 8 divisors (see below), whose sum is σ = 956336220. Its totient is φ = 297526768.

The previous prime is 616305479. The next prime is 616305517. The reversal of 616305506 is 605503616.

It can be written as a sum of positive squares in 2 ways, for example, as 615486481 + 819025 = 24809^2 + 905^2 .

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

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 5312921 + ... + 5313036.

Almost surely, 2^616305506 is an apocalyptic number.

616305506 is a deficient number, since it is larger than the sum of its proper divisors (340030714).

616305506 is a wasteful number, since it uses less digits than its factorization.

616305506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10625988.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 616305506 is about 24825.5011228374. The cubic root of 616305506 is about 851.0048121727.

The spelling of 616305506 in words is "six hundred sixteen million, three hundred five thousand, five hundred six".