616254613 has 12 divisors (see below), whose sum is σ = 671811300. Its totient is φ = 565009536.

The previous prime is 616254581. The next prime is 616254649. The reversal of 616254613 is 316452616.

616254613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 118875409 + 497379204 = 10903^2 + 22302^2 .

It is not a de Polignac number, because 616254613 - 2⁵ = 616254581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616254013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12945 + ... + 37417.

It is an arithmetic number, because the mean of its divisors is an integer number (55984275).

Almost surely, 2^616254613 is an apocalyptic number.

It is an amenable number.

616254613 is a deficient number, since it is larger than the sum of its proper divisors (55556687).

616254613 is a wasteful number, since it uses less digits than its factorization.

616254613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24648 (or 24635 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 616254613 is about 24824.4760871201. The cubic root of 616254613 is about 850.9813868965.

The spelling of 616254613 in words is "six hundred sixteen million, two hundred fifty-four thousand, six hundred thirteen".