616252013 has 4 divisors (see below), whose sum is σ = 663656028. Its totient is φ = 568848000.

The previous prime is 616252003. The next prime is 616252019. The reversal of 616252013 is 310252616.

616252013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 196084009 + 420168004 = 14003^2 + 20498^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-616252013 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 (616252019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23701988 + ... + 23702013.

It is an arithmetic number, because the mean of its divisors is an integer number (165914007).

Almost surely, 2^616252013 is an apocalyptic number.

It is an amenable number.

616252013 is a deficient number, since it is larger than the sum of its proper divisors (47404015).

616252013 is a wasteful number, since it uses less digits than its factorization.

616252013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47404014.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 616252013 is about 24824.4237193938. The cubic root of 616252013 is about 850.9801901213.

The spelling of 616252013 in words is "six hundred sixteen million, two hundred fifty-two thousand, thirteen".