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50500505500 = 2253101001011
BaseRepresentation
bin101111000010000100…
…001000111110011100
311211100110121111002121
4233002010020332130
51311411112134000
635111041032324
73435310133314
oct570204107634
9154313544077
1050500505500
111a465245265
1299546256a4
1349ba670c23
142630db8444
1514a87acb1a
hexbc2108f9c

50500505500 has 24 divisors (see below), whose sum is σ = 110293105104. Its totient is φ = 20200202000.

The previous prime is 50500505459. The next prime is 50500505501. The reversal of 50500505500 is 550500505.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50500505501) 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, 50500006 + ... + 50501005.

It is an arithmetic number, because the mean of its divisors is an integer number (4595546046).

Almost surely, 250500505500 is an apocalyptic number.

50500505500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

50500505500 is an abundant number, since it is smaller than the sum of its proper divisors (59792599604).

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

50500505500 is a wasteful number, since it uses less digits than its factorization.

50500505500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101001030 (or 101001018 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 25.

The spelling of 50500505500 in words is "fifty billion, five hundred million, five hundred five thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 101001011 202002022 404004044 505005055 1010010110 2020020220 2525025275 5050050550 10100101100 12625126375 25250252750 50500505500