561105100050 has 96 divisors (see below), whose sum is σ = 1518253611264. Its totient is φ = 136006728000.

The previous prime is 561105100033. The next prime is 561105100057. The reversal of 561105100050 is 50001501165.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (561105100057) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14783197 + ... + 14821103.

It is an arithmetic number, because the mean of its divisors is an integer number (15815141784).

Almost surely, 2^561105100050 is an apocalyptic number.

561105100050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

561105100050 is an abundant number, since it is smaller than the sum of its proper divisors (957148511214).

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

561105100050 is a wasteful number, since it uses less digits than its factorization.

561105100050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46904 (or 46899 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 24.

The spelling of 561105100050 in words is "five hundred sixty-one billion, one hundred five million, one hundred thousand, fifty".