49993664 has 28 divisors (see below), whose sum is σ = 113379504. Its totient is φ = 21425664.

The previous prime is 49993663. The next prime is 49993679. The reversal of 49993664 is 46639994.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49993663) 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, 55349 + ... + 56244.

It is an arithmetic number, because the mean of its divisors is an integer number (4049268).

Almost surely, 2^49993664 is an apocalyptic number.

It is an amenable number.

49993664 is an abundant number, since it is smaller than the sum of its proper divisors (63385840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49993664 is a wasteful number, since it uses less digits than its factorization.

49993664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111612 (or 111602 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 50.

The square root of 49993664 is about 7070.6197748147. The cubic root of 49993664 is about 368.3875878576.

The spelling of 49993664 in words is "forty-nine million, nine hundred ninety-three thousand, six hundred sixty-four".