616600057 has 2 divisors, whose sum is σ = 616600058. Its totient is φ = 616600056.

The previous prime is 616600043. The next prime is 616600093. The reversal of 616600057 is 750006616.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 602015296 + 14584761 = 24536^2 + 3819^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616600057 is a prime.

It is not a weakly prime, because it can be changed into another prime (616600007) by changing a digit.

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 as a sum of consecutive naturals, namely, 308300028 + 308300029.

It is an arithmetic number, because the mean of its divisors is an integer number (308300029).

Almost surely, 2^616600057 is an apocalyptic number.

It is an amenable number.

616600057 is a deficient number, since it is larger than the sum of its proper divisors (1).

616600057 is an equidigital number, since it uses as much as digits as its factorization.

616600057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 616600057 is about 24831.4328422667. The cubic root of 616600057 is about 851.1403642072.

The spelling of 616600057 in words is "six hundred sixteen million, six hundred thousand, fifty-seven".