50426537281 has 4 divisors (see below), whose sum is σ = 50472506052. Its totient is φ = 50380568512.

The previous prime is 50426537279. The next prime is 50426537299. The reversal of 50426537281 is 18273562405.

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 7949327281 + 42477210000 = 89159^2 + 206100^2 .

It is a cyclic number.

It is not a de Polignac number, because 50426537281 - 2¹ = 50426537279 is a prime.

It is a super-2 number, since 2×50426537281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50426537881) 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, 22982740 + ... + 22984933.

It is an arithmetic number, because the mean of its divisors is an integer number (12618126513).

Almost surely, 2^50426537281 is an apocalyptic number.

It is an amenable number.

50426537281 is a deficient number, since it is larger than the sum of its proper divisors (45968771).

50426537281 is a wasteful number, since it uses less digits than its factorization.

50426537281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45968770.

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 50426537281 in words is "fifty billion, four hundred twenty-six million, five hundred thirty-seven thousand, two hundred eighty-one".