50616613 has 4 divisors (see below), whose sum is σ = 50740780. Its totient is φ = 50492448.

The previous prime is 50616607. The next prime is 50616617. The reversal of 50616613 is 31661605.

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 42224004 + 8392609 = 6498^2 + 2897^2 .

It is a cyclic number.

It is not a de Polignac number, because 50616613 - 2⁵ = 50616581 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 (50616617) 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, 61470 + ... + 62287.

It is an arithmetic number, because the mean of its divisors is an integer number (12685195).

Almost surely, 2^50616613 is an apocalyptic number.

It is an amenable number.

50616613 is a deficient number, since it is larger than the sum of its proper divisors (124167).

50616613 is a wasteful number, since it uses less digits than its factorization.

50616613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124166.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 50616613 is about 7114.5353326834. The cubic root of 50616613 is about 369.9113812602.

The spelling of 50616613 in words is "fifty million, six hundred sixteen thousand, six hundred thirteen".