50403728437 has 4 divisors (see below), whose sum is σ = 50408077356. Its totient is φ = 50399379520.

The previous prime is 50403728423. The next prime is 50403728467. The reversal of 50403728437 is 73482730405.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21843066436 + 28560662001 = 147794^2 + 168999^2 .

It is a cyclic number.

It is not a de Polignac number, because 50403728437 - 2¹⁹ = 50403204149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50403728393 and 50403728402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50403728467) 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, 2157028 + ... + 2180269.

It is an arithmetic number, because the mean of its divisors is an integer number (12602019339).

Almost surely, 2^50403728437 is an apocalyptic number.

It is an amenable number.

50403728437 is a deficient number, since it is larger than the sum of its proper divisors (4348919).

50403728437 is a wasteful number, since it uses less digits than its factorization.

50403728437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4348918.

The product of its (nonzero) digits is 564480, while the sum is 43.

The spelling of 50403728437 in words is "fifty billion, four hundred three million, seven hundred twenty-eight thousand, four hundred thirty-seven".