50112155561 has 8 divisors (see below), whose sum is σ = 54113990784. Its totient is φ = 46131328080.

The previous prime is 50112155537. The next prime is 50112155573. The reversal of 50112155561 is 16555121105.

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 50112155561 - 2¹⁰ = 50112154537 is a prime.

It is a super-2 number, since 2×50112155561² (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 (50112155761) 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, 5246975 + ... + 5256516.

It is an arithmetic number, because the mean of its divisors is an integer number (6764248848).

Almost surely, 2^50112155561 is an apocalyptic number.

It is an amenable number.

50112155561 is a deficient number, since it is larger than the sum of its proper divisors (4001835223).

50112155561 is a wasteful number, since it uses less digits than its factorization.

50112155561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10503871.

The product of its (nonzero) digits is 7500, while the sum is 32.

Adding to 50112155561 its reverse (16555121105), we get a palindrome (66667276666).

The spelling of 50112155561 in words is "fifty billion, one hundred twelve million, one hundred fifty-five thousand, five hundred sixty-one".