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2505005500 = 225329172759
BaseRepresentation
bin1001010101001111…
…0101100110111100
320110120121110112111
42111103311212330
520112240134000
61052322543404
7116035124014
oct22523654674
96416543474
102505005500
111076012788
1259ab07b64
1330bc9289a
1419a994c44
15e9db8cba
hex954f59bc

2505005500 has 48 divisors (see below), whose sum is σ = 5659617600. Its totient is φ = 967444800.

The previous prime is 2505005453. The next prime is 2505005501. The reversal of 2505005500 is 55005052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505005501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71880 + ... + 100879.

It is an arithmetic number, because the mean of its divisors is an integer number (117908700).

Almost surely, 22505005500 is an apocalyptic number.

2505005500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2505005500 is an abundant number, since it is smaller than the sum of its proper divisors (3154612100).

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

2505005500 is a wasteful number, since it uses less digits than its factorization.

2505005500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172807 (or 172795 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 22.

The square root of 2505005500 is about 50050.0299700210. The cubic root of 2505005500 is about 1358.1140055960.

The spelling of 2505005500 in words is "two billion, five hundred five million, five thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 29 50 58 100 116 125 145 250 290 500 580 725 1450 2900 3625 7250 14500 172759 345518 691036 863795 1727590 3455180 4318975 5010011 8637950 10020022 17275900 20040044 21594875 25050055 43189750 50100110 86379500 100200220 125250275 250500550 501001100 626251375 1252502750 2505005500