616255133 has 16 divisors (see below), whose sum is σ = 703306800. Its totient is φ = 535825920.

The previous prime is 616255127. The next prime is 616255141. The reversal of 616255133 is 331552616.

It can be written as a sum of positive squares in 8 ways, for example, as 107391769 + 508863364 = 10363^2 + 22558^2 .

It is a cyclic number.

It is not a de Polignac number, because 616255133 - 2⁶ = 616255069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 616255133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616255103) 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, 4478 + ... + 35391.

It is an arithmetic number, because the mean of its divisors is an integer number (43956675).

Almost surely, 2^616255133 is an apocalyptic number.

It is an amenable number.

616255133 is a deficient number, since it is larger than the sum of its proper divisors (87051667).

616255133 is a wasteful number, since it uses less digits than its factorization.

616255133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39952.

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

The square root of 616255133 is about 24824.4865606522. The cubic root of 616255133 is about 850.9816262511.

The spelling of 616255133 in words is "six hundred sixteen million, two hundred fifty-five thousand, one hundred thirty-three".