50240023013 has 4 divisors (see below), whose sum is σ = 50240743980. Its totient is φ = 50239302048.

The previous prime is 50240022953. The next prime is 50240023073. The reversal of 50240023013 is 31032004205.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (50240022953) and next prime (50240023073).

It can be written as a sum of positive squares in 2 ways, for example, as 23957777089 + 26282245924 = 154783^2 + 162118^2 .

It is a cyclic number.

It is not a de Polignac number, because 50240023013 - 2¹⁸ = 50239760869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50240023073) 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, 243248 + ... + 399561.

It is an arithmetic number, because the mean of its divisors is an integer number (12560185995).

Almost surely, 2^50240023013 is an apocalyptic number.

It is an amenable number.

50240023013 is a deficient number, since it is larger than the sum of its proper divisors (720967).

50240023013 is an equidigital number, since it uses as much as digits as its factorization.

50240023013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720966.

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 50240023013 its reverse (31032004205), we get a palindrome (81272027218).

The spelling of 50240023013 in words is "fifty billion, two hundred forty million, twenty-three thousand, thirteen".