50111035561 has 8 divisors (see below), whose sum is σ = 51061457160. Its totient is φ = 49160796672.

The previous prime is 50111035553. The next prime is 50111035649. The reversal of 50111035561 is 16553011105.

It can be written as a sum of positive squares in 4 ways, for example, as 11630328336 + 38480707225 = 107844^2 + 196165^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 50111035561 - 2³ = 50111035553 is a prime.

It is a super-2 number, since 2×50111035561² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50111035061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591481 + ... + 670873.

It is an arithmetic number, because the mean of its divisors is an integer number (6382682145).

Almost surely, 2^50111035561 is an apocalyptic number.

It is an amenable number.

50111035561 is a deficient number, since it is larger than the sum of its proper divisors (950421599).

50111035561 is a wasteful number, since it uses less digits than its factorization.

50111035561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91355.

The product of its (nonzero) digits is 2250, while the sum is 28.

Adding to 50111035561 its reverse (16553011105), we get a palindrome (66664046666).

The spelling of 50111035561 in words is "fifty billion, one hundred eleven million, thirty-five thousand, five hundred sixty-one".