50557350565 has 8 divisors (see below), whose sum is σ = 60677952408. Its totient is φ = 40439792640.

The previous prime is 50557350559. The next prime is 50557350611. The reversal of 50557350565 is 56505375505.

It can be written as a sum of positive squares in 4 ways, for example, as 1671256161 + 48886094404 = 40881^2 + 221102^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50557350565 - 2¹⁹ = 50556826277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 724276 + ... + 791005.

It is an arithmetic number, because the mean of its divisors is an integer number (7584744051).

Almost surely, 2^50557350565 is an apocalyptic number.

It is an amenable number.

50557350565 is a deficient number, since it is larger than the sum of its proper divisors (10120601843).

50557350565 is a wasteful number, since it uses less digits than its factorization.

50557350565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521959.

The product of its (nonzero) digits is 1968750, while the sum is 46.

The spelling of 50557350565 in words is "fifty billion, five hundred fifty-seven million, three hundred fifty thousand, five hundred sixty-five".