50561011105506 has 48 divisors (see below), whose sum is σ = 119509825470048. Its totient is φ = 15321264537600.

The previous prime is 50561011105481. The next prime is 50561011105513. The reversal of 50561011105506 is 60550111016505.

It is a happy number.

50561011105506 is a `hidden beast` number, since 50 + 56 + 1 + 0 + 1 + 1 + 1 + 0 + 550 + 6 = 666.

It is a super-2 number, since 2×50561011105506² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10033890 + ... + 14205666.

It is an arithmetic number, because the mean of its divisors is an integer number (2489788030626).

Almost surely, 2^{50561011105506} is an apocalyptic number.

50561011105506 is an abundant number, since it is smaller than the sum of its proper divisors (68948814364542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50561011105506 is a wasteful number, since it uses less digits than its factorization.

50561011105506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4233007 (or 4233004 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 36.

The spelling of 50561011105506 in words is "fifty trillion, five hundred sixty-one billion, eleven million, one hundred five thousand, five hundred six".