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BaseRepresentation
bin1001011010000100…
…01000010111010001
3111000222102000022100
410231002020113101
540320412004221
62153053431013
7236104355301
oct45502102721
914028360270
105050500561
11216196a907
12b8b49b469
13626460a92
1435ca89601
151e85ce926
hex12d0885d1

5050500561 has 24 divisors (see below), whose sum is σ = 7699484000. Its totient is φ = 3181332672.

The previous prime is 5050500557. The next prime is 5050500569. The reversal of 5050500561 is 1650050505.

5050500561 is a `hidden beast` number, since 5 + 0 + 50 + 50 + 0 + 561 = 666.

It is not a de Polignac number, because 5050500561 - 22 = 5050500557 is a prime.

It is a super-2 number, since 2×50505005612 = 51015111833322629442, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5050500569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25845 + ... + 103773.

Almost surely, 25050500561 is an apocalyptic number.

It is an amenable number.

5050500561 is a deficient number, since it is larger than the sum of its proper divisors (2648983439).

5050500561 is a wasteful number, since it uses less digits than its factorization.

5050500561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78333 (or 78330 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 5050500561 is about 71066.8738653953. The cubic root of 5050500561 is about 1715.7136556215.

The spelling of 5050500561 in words is "five billion, fifty million, five hundred thousand, five hundred sixty-one".