50043013 has 4 divisors (see below), whose sum is σ = 51206848. Its totient is φ = 48879180.

The previous prime is 50042989. The next prime is 50043023. The reversal of 50043013 is 31034005.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31034005 = 5 ⋅6206801.

It is a cyclic number.

It is not a de Polignac number, because 50043013 - 2²¹ = 47945861 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 (50043023) 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, 581853 + ... + 581938.

It is an arithmetic number, because the mean of its divisors is an integer number (12801712).

Almost surely, 2^50043013 is an apocalyptic number.

It is an amenable number.

50043013 is a deficient number, since it is larger than the sum of its proper divisors (1163835).

50043013 is a wasteful number, since it uses less digits than its factorization.

50043013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163834.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 50043013 is about 7074.1086364290. The cubic root of 50043013 is about 368.5087604169.

Adding to 50043013 its reverse (31034005), we get a palindrome (81077018).

The spelling of 50043013 in words is "fifty million, forty-three thousand, thirteen".