49993613 has 8 divisors (see below), whose sum is σ = 50639160. Its totient is φ = 49351680.

The previous prime is 49993589. The next prime is 49993627. The reversal of 49993613 is 31639994.

It can be written as a sum of positive squares in 4 ways, for example, as 1857769 + 48135844 = 1363^2 + 6938^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49993613 - 2⁸ = 49993357 is a prime.

It is a super-2 number, since 2×49993613² = 4998722681587538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49993633) 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 7 ways as a sum of consecutive naturals, for example, 36053 + ... + 37413.

It is an arithmetic number, because the mean of its divisors is an integer number (6329895).

Almost surely, 2^49993613 is an apocalyptic number.

It is an amenable number.

49993613 is a deficient number, since it is larger than the sum of its proper divisors (645547).

49993613 is a wasteful number, since it uses less digits than its factorization.

49993613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807.

The product of its digits is 157464, while the sum is 44.

The square root of 49993613 is about 7070.6161683406. The cubic root of 49993613 is about 368.3874625899.

The spelling of 49993613 in words is "forty-nine million, nine hundred ninety-three thousand, six hundred thirteen".