50758007561 has 4 divisors (see below), whose sum is σ = 51038438724. Its totient is φ = 50477576400.

The previous prime is 50758007549. The next prime is 50758007593. The reversal of 50758007561 is 16570085705.

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 10017007225 + 40741000336 = 100085^2 + 201844^2 .

It is a cyclic number.

It is not a de Polignac number, because 50758007561 - 2¹⁸ = 50757745417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50758027561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140215310 + ... + 140215671.

It is an arithmetic number, because the mean of its divisors is an integer number (12759609681).

Almost surely, 2^50758007561 is an apocalyptic number.

It is an amenable number.

50758007561 is a deficient number, since it is larger than the sum of its proper divisors (280431163).

50758007561 is a wasteful number, since it uses less digits than its factorization.

50758007561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280431162.

The product of its (nonzero) digits is 294000, while the sum is 44.

The spelling of 50758007561 in words is "fifty billion, seven hundred fifty-eight million, seven thousand, five hundred sixty-one".