50758543581 has 4 divisors (see below), whose sum is σ = 67678058112. Its totient is φ = 33839029052.

The previous prime is 50758543579. The next prime is 50758543631. The reversal of 50758543581 is 18534585705.

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.

It is a cyclic number.

It is not a de Polignac number, because 50758543581 - 2¹ = 50758543579 is a prime.

It is a super-2 number, since 2×50758543581² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50758543181) 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, 8459757261 + ... + 8459757266.

It is an arithmetic number, because the mean of its divisors is an integer number (16919514528).

Almost surely, 2^50758543581 is an apocalyptic number.

It is an amenable number.

50758543581 is a deficient number, since it is larger than the sum of its proper divisors (16919514531).

50758543581 is a wasteful number, since it uses less digits than its factorization.

50758543581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16919514530.

The product of its (nonzero) digits is 3360000, while the sum is 51.

The spelling of 50758543581 in words is "fifty billion, seven hundred fifty-eight million, five hundred forty-three thousand, five hundred eighty-one".