50561100 has 54 divisors (see below), whose sum is σ = 158483780. Its totient is φ = 13482720.

The previous prime is 50561051. The next prime is 50561101. The reversal of 50561100 is 116505.

50561100 is a `hidden beast` number, since 5 + 0 + 561 + 100 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (50561101) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 27190 + ... + 28989.

Almost surely, 2^50561100 is an apocalyptic number.

50561100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

50561100 is an abundant number, since it is smaller than the sum of its proper divisors (107922680).

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

50561100 is a wasteful number, since it uses less digits than its factorization.

50561100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56199 (or 56189 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 50561100 is about 7110.6328832250. The cubic root of 50561100 is about 369.7761002330.

Adding to 50561100 its reverse (116505), we get a palindrome (50677605).

The spelling of 50561100 in words is "fifty million, five hundred sixty-one thousand, one hundred".