50113643 has 4 divisors (see below), whose sum is σ = 50132280. Its totient is φ = 50095008.

The previous prime is 50113633. The next prime is 50113667. The reversal of 50113643 is 34631105.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 50113643 - 2¹⁸ = 49851499 is a prime.

It is a super-2 number, since 2×50113643² = 5022754429462898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50113633) 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, 4430 + ... + 10947.

It is an arithmetic number, because the mean of its divisors is an integer number (12533070).

Almost surely, 2^50113643 is an apocalyptic number.

50113643 is a deficient number, since it is larger than the sum of its proper divisors (18637).

50113643 is a wasteful number, since it uses less digits than its factorization.

50113643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18636.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 50113643 is about 7079.0990245935. The cubic root of 50113643 is about 368.6820482660.

Adding to 50113643 its reverse (34631105), we get a palindrome (84744748).

The spelling of 50113643 in words is "fifty million, one hundred thirteen thousand, six hundred forty-three".